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A functional campervan sink isn’t just some posh luxury; it’s a genuine game-changer. Seriously. The moment you can wash your hands, rinse veg, or do the washing up without balancing a bowl on your lap is the moment your van starts to feel like a proper home. In this guide on Installing a Campervan Sink, we will explore the essential aspects to consider.

But getting it right is key. The best sink is a careful balancing act between the right material, a sensible size, and your van’s water capacity. Get it wrong, and you’ll either compromise precious space or drain your water tanks before you’ve even had your morning brew.

Choosing the Right Sink for Your Van Build

Before diving into the specifics, it’s crucial to understand that installing a campervan sink requires careful planning.

It’s easy to get bogged down in options here, but the decision really boils down to three things: material, shape, and depth. Each one has a direct knock-on effect on your build’s weight, how much water you get through, and how usable your kitchen actually is. Nail this at the start and you’ll save yourself a world of frustration later on.

A classic mistake is trying to replicate your home kitchen. That gorgeous, heavy ceramic Belfast sink might look the business on Instagram, but the reality is its weight puts a hell of a strain on your van’s payload and your carefully built wooden cabinets. Likewise, a super-deep basin is just an invitation to use more water, which can empty a small 20-litre freshwater tank in a shockingly short amount of time.

Material Matters Most

Your choice of sink material is probably the most critical decision, as it dictates durability, weight, and how much time you’ll spend cleaning the thing.

  • Stainless steel is the go-to for a reason. It’s what you see in commercial kitchens, which tells you everything you need to know about its resilience. It’s relatively lightweight, bombproof against heat and rust, and a doddle to keep clean. You can’t really go wrong with it.

  • Composite sinks, often made from granite or quartz mixed with resin, offer a more modern look in various colours like black, grey, or white. They’re brilliant at resisting scratches and stains but are usually heavier and pricier than their steel counterparts. If the budget and payload can stretch, they look fantastic.

  • Plastic or acrylic sinks are the featherweight champions. If you’re on a tight budget or every single gram counts in your build, they’re a viable option. Just be aware that they are the most likely to get scratched up and can stain over time. They work well for simple, minimalist setups where saving weight is the number one priority.

To make it easier to see how they stack up, here’s a quick comparison of the most common options you’ll find for a UK van conversion.

Campervan Sink Material and Type Comparison

This table breaks down the pros and cons of common campervan sink options to help you decide what’s best for your build, budget, and lifestyle.

Sink TypeMaterialAverage Cost (UK)ProsCons
Standard InsetStainless Steel£40 – £120Lightweight, durable, easy to clean, heat resistant, widely available.Can be noisy, may scratch over time, basic appearance.
Composite InsetGranite/Quartz Composite£100 – £250Scratch & stain resistant, modern look, available in colours.Heavier than steel, more expensive, can crack with severe impact.
Belfast/FarmhouseCeramic£150 – £300+Looks amazing, very durable, deep basin.Extremely heavy, requires very sturdy cabinetry, high cost.
Compact RoundStainless Steel or Plastic£30 – £80Space-saving, good for small galleys, lightweight.Limited washing-up space, not great for large pots.
Plastic/AcrylicAcrylic/Polycarbonate£25 – £60Very lightweight, cheapest option, easy to install.Scratches easily, can stain over time, feels less premium.

Ultimately, for most van builds, a good quality stainless steel sink offers the best blend of performance, weight, and cost. But if aesthetics or an ultra-light build are your top priorities, composites and plastics have their place.

Ultimately, this guide will equip you with all the knowledge needed for successfully Installing a Campervan Sink.

Shape and Size Considerations

The shape of your sink—usually round or rectangular—has a massive impact on your usable counter space.

Round sinks often feel more compact and can be tucked into tight corners or smaller galley units. They’re perfect for basic tasks like washing your hands or rinsing off a couple of mugs.

Rectangular sinks, however, give you much more practical space for washing up larger pots and pans. If you actually plan on cooking proper meals in your van, a rectangular design is almost always the more functional choice. Here’s a tip from experience: find one that comes with a fitted chopping board cover. This instantly turns your sink into extra worktop space when you’re not using it.

A sink cover is one of the smartest space-saving tricks in the book. It lets you reclaim the entire sink area for food prep, effectively doubling your usable counter space in a tiny kitchen. It’s a non-negotiable for me now.

Finding the Right Depth

Finally, think about the depth. A shallow basin uses less water but can make washing up a real chore, with water splashing everywhere. A deep basin is great for containing splashes and soaking bigger items but, as mentioned, it can trick you into using far too much water.

For most van builds, a depth of around 15 to 20 cm (that’s about 6 to 8 inches) is the sweet spot. This gives you enough volume to be practical without tempting you to fill it to the brim and empty your water tank before you’ve even finished the first plate. Always keep your water system’s total capacity in mind when you make this final decision.

How to Fit and Seal Your Campervan Sink

Right, you’ve picked your sink. Now for the slightly terrifying part: cutting a massive hole in your beautiful, and probably expensive, worktop.

This is one of those jobs where taking your time pays off massively. Rushing now is how you end up with a wonky sink, a ruined worktop, and a serious case of builder’s remorse. But if you’re methodical, it’s a completely manageable and incredibly satisfying part of the build. A well-fitted sink will look professional and, more importantly, withstand years of bumpy roads without a single leak or rattle.

Before you even think about marking a line, place the sink on the worktop and just… live with it for a minute. Think about how you’ll actually use the galley. Is there enough space next to it for a chopping board? Can you still get into the drawers underneath without bashing your knuckles?

And just as crucial, what’s going on underneath? You need a clear run for the waste trap, tap fittings, and all the pipework, well away from any cabinet framework. Trust me, discovering a bracing strut exactly where your waste pipe needs to go is a special kind of van-building hell.

Creating and Cutting Your Template

This is the most critical part of the whole process. Get this right, and everything else is easy.

Don’t be tempted to just flip the sink over and draw around it. That’s the fastest way to cut a hole that’s way too big, leaving your sink with nothing to sit on.

Most new sinks come with a paper template right in the box. If you’ve got one, you’re in luck:

  1. Position the Template: Stick it down with masking tape exactly where you want the sink to live.
  2. Double-Check Everything: Get the tape measure out. Check the distance from the front, back, and side edges of the worktop. Is it perfectly square to the cabinet unit? Now’s the time to be pedantic.
  3. Draw Your Cut Line: Once you are absolutely certain it’s in the right spot, trace along the ‘cut line’ with a sharp pencil.

No template? No problem. Grab a big piece of cardboard. Place the sink upside down on it and draw around the absolute outer edge. Next, measure the width of the sink’s lip—the bit that will actually rest on the worktop—and draw a second, smaller line inside your first one, offset by that exact measurement. This inner line is your cut line.

With the line drawn on the worktop, you’re ready to cut. A jigsaw is your best friend here. Start by drilling a pilot hole, maybe 10mm or so, just inside one of the corners of your marked line. This gives you a neat entry point for the jigsaw blade.

Pro Tip: For a super clean cut with less splintering on the visible side, lay masking tape along the entire cut line before you start. It also makes a huge difference if you use a fine-toothed, downward-cutting jigsaw blade designed for laminate or wood. It stops the blade from chipping the top surface as it cuts.

Cut slowly and steadily, letting the jigsaw do the work. Don’t force it, especially around the corners—guide it gently for a nice, smooth curve. Once the hole is cut, pop the sink in for a ‘dry fit’. It should be snug, but not so tight you have to hammer it into place.

Sealing for a Waterproof and Secure Fit

Now for the final, and most important, step: making it waterproof. A proper seal is non-negotiable. It stops water from seeping under the sink and rotting your wooden worktop from the inside out. It also stops those annoying rattles and vibrations when you’re driving down a B-road.

Your go-to product here needs to be a flexible, waterproof adhesive sealant. In the UK van building world, Sikaflex 512 is practically legendary, and for good reason. It’s ridiculously strong, stays flexible enough to handle the van’s movement, and creates a bond that is completely watertight.

Apply a generous, continuous bead of sealant all the way around the underside of the sink’s lip. Don’t be shy with it; any excess that squeezes out is easy to clean up. Now, carefully lower the sink into the worktop cutout.

Most sinks come with a set of mounting clips. These are little metal brackets that hook onto the underside of the sink and tighten up against the worktop, pulling the whole thing down firmly. Fit these clips, tightening them evenly around the sink to create consistent pressure. As you tighten, you should see a small, even bead of sealant squeeze out all around the edge. This is a great sign—it means you’ve got a solid, gap-free seal.

Wipe away any excess sealant immediately using a cloth and some white spirit for a neat, professional finish. Before the sealant fully cures (check the tube, but it’s usually about 24 hours), get a spirit level and make one last check that the sink is sitting perfectly level. Once it’s cured solid, you’re ready to tackle the plumbing, starting with the waste. Thinking about these details is key, and an ultimate guide to the stainless steel sink drain can give you some great insights into choosing and installing that crucial bit of plumbing.

A Practical Guide to Your Freshwater System

With your campervan sink firmly in place, it’s time to bring it to life by connecting it to a freshwater system. This stage can feel a bit technical, but don’t worry. It’s essentially just a circuit that moves clean water from a storage tank, through a pump, and out of your tap.

Getting this right means having reliable, pressurised water for washing up, filling the kettle, or just rinsing your hands. Trust me, it’s a small luxury that makes a huge difference on the road. The core of your system will be a food-grade water tank, a 12V water pump, and the right pipes and fittings to join everything together. Let’s break down how it all works.

Choosing Your 12V Water Pump

The pump is the heart of your water system, and your choice will generally come down to two main types: submersible and diaphragm pumps.

A submersible pump is the simpler and cheaper option. As the name suggests, you just drop it directly into your water tank. When you turn on the tap (which needs a microswitch), the pump kicks in and pushes water up the pipe. They’re quiet and dead simple, but if one fails, you’ve got to fish it out of the tank to replace it, which is always a bit of a faff.

A diaphragm pump, on the other hand, is mounted externally—usually tucked away inside a kitchen cabinet. It works by pulling water from the tank, pressurising it, and then pushing it towards the tap. They’re more powerful, self-priming (meaning they can pull water up even if there’s air in the line), and generally more robust. The downside? They create more noise and vibration, but the reliable, consistent pressure they provide makes them the go-to choice for most serious builds.

Why an Accumulator is a Smart Upgrade

If you’ve opted for a diaphragm pump, I’d strongly recommend adding an accumulator to your system. Don’t skip this to save a few quid. This small pressurised tank sits between your pump and your tap and acts as a pressure buffer, smoothing out the water flow and stopping the pump from pulsing aggressively every time you slightly open the tap.

Here’s what an accumulator does for you:

  • Reduces Pump Cycling: It stops the pump from rapidly switching on and off for small water demands, which will massively extend its lifespan.
  • Quieter Operation: By absorbing the pressure fluctuations, it makes the whole system much less noisy.
  • Smoother Water Flow: It gets rid of that annoying ‘spitting’ or pulsing water stream, giving you a consistent flow just like at home.

It’s a small extra cost, but the improvement in performance and the longevity of your pump make it a no-brainer.

An accumulator turns a good water system into a great one. It’s the difference between a jerky, noisy setup and a smooth, reliable flow you can depend on. Don’t skip it to save a few quid—you’ll regret it later.

Assembling Your Freshwater System

Setting up your tanks correctly is fundamental. For an even more thorough overview, our guide on choosing and fitting a https://theferalway.com/campervan-water-tank/ provides an in-depth look at your options.

The wider shift towards vehicle electrification in the UK is also influencing appliance choices in campervan conversions. As more of us expect efficient 12V systems, the typical setup now pairs an electric pump with well-sized water tanks. The Committee on Climate Change’s 2025 report highlights the rapid growth of EVs, which is shaping expectations for on-board electrical management. In practical terms, a common 12V water pump draws just 3–5 amps, making it an efficient part of a modern van’s electrical system when matched with a 12–40 litre freshwater tank.

Your final step is wiring the pump to your 12V leisure battery system via a switch. This is usually a simple two-wire job: connect the positive wire to a fused switch on your control panel and the negative wire to a common earth point. Always, always install an inline fuse rated appropriately for your pump to protect the circuit.

Managing Greywater and Preventing Odours

Once your freshwater is flowing, the next question is obvious: where does the dirty water go? This is your greywater—everything from washing up to brushing your teeth—and managing it is a non-negotiable part of responsible vanlife in the UK. Get it wrong, and you’re in for a world of nasty smells, frustrating blockages, and the potential to harm the environment.

At the heart of the system is your greywater tank. A golden rule from years on the road: make sure this tank is the same size as, or slightly larger than, your freshwater tank. There’s nothing more annoying than having to stop using your sink because the waste is full, even though you’ve still got plenty of clean water left.

Internal vs Underslung Greywater Tanks

Your first big decision is where to stick this tank. You’ve got two main choices: inside a cupboard or bolted underneath the van chassis (underslung). Each has its pros and cons, especially for the unpredictable UK climate.

  • Internal Tanks: This is the simple approach. It’s usually just a portable container, often a standard 20-litre jerry can, tucked away inside the sink cabinet. Installation is a doddle, it’s cheap, and emptying is as easy as grabbing the can and walking to a disposal point. The big drawback? It eats up precious cupboard space and you run the risk of spills inside your living area.

  • Underslung Tanks: These are purpose-built tanks fixed directly to the vehicle’s chassis. The immediate win is freeing up all that internal storage. You can also go for a much larger capacity, often 50 litres or more, which is a game-changer for longer trips. The downside is the installation is a much bigger job, and the tank is exposed to the elements. In a British winter, an uninsulated underslung tank can, and will, freeze solid.

For year-round UK travel, an internal tank is arguably the more reliable choice against freezing. But if you’re living in your van full-time where every inch of cupboard space is gold, a properly installed and insulated underslung tank is the superior long-term solution.

Creating a Leak-Proof and Odour-Free Setup

Connecting your sink to the tank has to be done right, or you’ll quickly find your van smelling like a blocked drain. The first component is non-negotiable: a standard sink waste trap. This is the U-bend you’d find under any kitchen sink at home. It’s absolutely essential because it holds a small amount of water, creating a physical barrier that stops smells from the tank wafting back up into your living space.

From the trap, run a flexible convoluted waste hose to your tank. Don’t skimp on the jubilee clips at both ends; they are your best friends for ensuring a watertight seal. As you route the pipe, make sure it has a constant downward slope. Any flat spots or dips will become a collection point for foul-smelling, stagnant water and food scraps.

Pro Tip: A properly vented tank is the secret to a smell-free system. A simple vent pipe running from the top of your greywater tank to the outside of the van lets air escape as water comes in. This stops the gurgling and prevents pressure from building up and forcing odours back up the plughole.

Responsible Greywater Disposal in the UK

Knowing where to empty your tank is just as important as building the system itself. Never, ever dump greywater on the roadside, in a car park, or anywhere near a river or stream. The soaps, detergents, and food bits, while seemingly harmless, can cause real damage to local wildlife and ecosystems.

The only acceptable place is a designated motorhome service point, which you’ll find at most campsites and some dedicated public facilities. If you’re wild camping, you collect it and hold onto it until you can get to a proper disposal point. Regular maintenance helps too, like using tank fresheners. For a full rundown on keeping your water system clean, our guide on campervan water tank cleaning has all the details you’ll need.

Tools, Parts, and What This Will Actually Cost You

There’s a direct link between a successful van conversion and good planning. Getting your tools, parts, and budget sorted before you start the sink installation is the difference between a satisfying weekend job and a project that drags on for weeks, punctuated by endless, frustrating trips to B&Q.

I’ve been there. Halfway through a job, covered in sealant, only to realise I’m missing a specific jubilee clip or the right size of pipe fitting. Getting everything you need laid out upfront turns what could be a headache into a smooth, rewarding process.

The Right Tools for the Job

You’ll need a mix of your standard DIY toolkit and a few specialist items to get a clean, professional-looking finish. Most van builders will have the basics, but it’s the specific tools that elevate the job from a rough-and-ready bodge to something you’re proud of.

Here’s the gear I’d have ready before making a single cut:

  • Jigsaw: Absolutely essential for cutting the hole for the sink in your worktop. Pro tip: use a fine-toothed, downward-cutting blade to avoid chipping the laminate on the top surface.
  • Drill with Hole Saws: You’ll need a hole saw bit that precisely matches the diameter of your tap’s base. A snug fit here is critical for a leak-proof seal.
  • Tape Measure & Pencil: The old rule of “measure twice, cut once” has never been more important. One mistake here and you’re looking at a new worktop.
  • Screwdrivers: A decent set is a must for tightening the sink’s mounting clips and various other fittings.
  • Sealant Gun: This is for applying a smooth, consistent bead of adhesive sealant like Sikaflex. Don’t try to do it by hand.
  • Pipe Cutters or a Sharp Stanley Knife: Getting clean, square cuts on your flexible water pipes is crucial for a watertight connection.
  • Wire Strippers & Crimpers: If you want to connect your 12V water pump to your electrical system safely and reliably, these are non-negotiable.

For a deeper dive into the kit that forms the backbone of any good build, our complete guide to the essential tools and materials for campervan conversions is a great place to start.

A Complete Parts Checklist

This list covers every component you’ll likely need, from the big-ticket items right down to the small but vital fittings that are so easy to forget.

  • The Sink & Tap: The main event, of course.
  • Waste Trap & Plughole Fitting: Don’t skip the U-bend; it’s what stops nasty smells from your grey water tank coming back up the drain.
  • Freshwater & Greywater Tanks: Typically 10-25 litre food-grade containers. Simple jerry cans work perfectly well.
  • 12V Water Pump: A diaphragm pump is my recommendation for getting consistent pressure, rather than a cheaper submersible one.
  • Accumulator: Honestly, I’d call this a non-negotiable add-on. It gives you a smooth, even flow of water and dramatically extends the life of your pump.
  • Food-Grade Flexible Water Pipe: Usually 12mm diameter for UK systems.
  • Flexible Waste Pipe: This is often 20-25mm convoluted hosing.
  • Jubilee Clips: Get a bag with more than you think you’ll need. You always use more.
  • Waterproof Sealant: Sikaflex 512 or a similar marine-grade adhesive sealant is the gold standard here.
  • Wiring, Fuse & Switch: For safely hooking your pump up to your 12V leisure battery system.

Having a complete parts list before you spend a penny is your best defence against budget creep. It’s always the small, forgotten items that add up and push your costs over the edge.

Estimated UK Cost Breakdown for Campervan Sink Installation

So, what’s the real-world cost for all this in the UK? Your total spend can vary hugely. A simple, cold-water-only system using budget parts is surprisingly affordable, while adding hot water and premium components will naturally increase the price tag.

The table below gives a realistic idea of what to expect, comparing a basic setup with a more robust, mid-range system.

ComponentBudget System Cost (£)Mid-Range System Cost (£)Notes
Sink & Cold Tap£50 – £90£100 – £180Stainless steel is cheaper; composites cost more.
12V Water Pump£20 – £40£60 – £100A budget submersible vs. a quality diaphragm pump.
Water Tanks (2x)£30 – £50£40 – £70Standard jerry cans are a great budget option.
Plumbing & Fittings£25 – £40£30 – £50Pipes, clips, waste trap, sealant.
AccumulatorN/A£30 – £45Highly recommended for mid-range systems.
Total Estimated Cost£125 – £220£260 – £445Prices exclude hot water heaters, which add £200+.

As you can see, a perfectly functional system can be built for under £150 if you’re careful with your component choices. However, spending a bit more on a better pump and an accumulator really does improve the day-to-day experience and is an investment I’d always recommend if the budget allows.

Your Campervan Sink Questions, Answered

Every van build hits a point where theory meets reality, and for sinks, that’s usually when you’re staring at a pile of pipes wondering what you’ve gotten yourself into. Let’s tackle the questions that pop up once you start plumbing. Getting these details right is the difference between a system you love and one that just annoys you on the road.

Why Does My Water Pump Rattle the Whole Van?

Ah, the classic 3 am vanlife wake-up call: the water pump kicking in with the sound of a pneumatic drill. It’s a common one, but thankfully, it’s usually an easy fix. The number one cause is mounting the pump directly to a big, flat piece of plywood, which then acts like a speaker, amplifying every vibration.

Most decent pumps from brands like Shurflo or Whale come with little rubber feet. Use them. They’re not optional extras. For an even better result, don’t screw the pump to the cabinet at all. Instead, mount it onto a small, separate block of dense foam or a thick rubber mat first, and then fix that block to the cabinet wall. This extra layer of isolation works wonders.

The other culprit is your pipework. If you’ve got pipes just dangling in a cupboard, they’ll rattle against the walls when the pump runs. A few P-clips screwed in to hold the pipes snug and secure will stop that racket instantly.

What Size Water Tanks Do I Actually Need?

This is the ultimate “how long is a piece of string?” question, because it all comes down to your travel style. But after years on the road, I can give you some solid starting points for UK trips.

  • Weekend Trips & Festivals: If you’re mostly doing 2-3 day trips, a simple 20-25 litre fresh water tank and a matching grey water tank is perfect. It’s enough for washing up a couple of times, brushing teeth, and cooking, without sacrificing loads of space and payload.
  • Full-Time or Longer Adventures: Planning to be off-grid for a week at a time? You’ll want to size up. A 50-70 litre fresh tank is a common choice for full-timers, giving you proper freedom between fill-ups. Just remember the golden rule: your grey water tank must be the same size or bigger than your fresh one. You don’t want to be forced to find a disposal point just because your waste tank is overflowing when you still have fresh water left.

My rule of thumb is to budget for 5-10 litres of water per person, per day. That covers drinking, cooking, and washing up. If you’re planning on having even a quick shower in the van, you’ll need to double that estimate, at least.

Are There Any UK Rules for Van Water Systems I Should Know About?

While your DIY van conversion doesn’t face the same strict laws as a commercial food truck, there are definitely best practices you need to follow. It’s all about safety, hygiene, and not being a menace to the countryside.

First, your fresh and grey water systems must be completely separate. No shortcuts. Use food-grade pipes, tanks, and fittings for everything that touches your drinking water. This is non-negotiable, as it stops nasty chemicals leaching into your supply.

When it comes to getting rid of your grey water, it’s illegal to just dump it on the side of the road or in a car park. You must use a designated disposal point (often called an Elsan point) at a campsite or other facility. This protects our beautiful UK countryside and waterways from soap and food waste pollution.

With vanlife and camping holidays booming in the UK, responsible practices are more important than ever. A national survey estimated that a massive 10.4 million Brits planned a camping or caravanning trip in 2025. That’s a huge number of vehicles out there, and it puts the spotlight firmly on self-containment and managing our waste properly. You can read the full research about these travel trends and their impact on portable facilities to see why getting this stuff right really matters.


At The Feral Way, we provide honest, road-tested advice for your UK campervan build. Find more practical guides and real-world tips at https://www.theferalway.com.

Right, let’s get into the most important part of any van build: the layout. This is where you turn a cold, empty metal box into a space that actually works for you. Get this right, and day-to-day life on the road is a breeze. Get it wrong, and you’ll spend the next year tripping over your own feet, wishing you’d moved the kitchen unit two inches to the left.

A good plan is your blueprint for everything. It saves you from making expensive mistakes, maximises every last bit of space, and ultimately decides whether your van is a joy to live in or a constant frustration.

Designing Your Perfect Van Furniture Layout

In this guide, we’ll explore the essentials of van conversion furniture, ensuring your van is not just functional but also comfortable and stylish.

Before you even think about cutting a single piece of plywood, your first tools should be a good measuring tape, some graph paper (or an app), and a very clear idea of what you need. The goal here isn’t to copy a layout you saw on Instagram; it’s to design a space that fits your life. This is where the real adventure begins.

The UK van scene is booming. This surge is pushing suppliers to offer smarter, lighter materials that can slash build weight by 10–30%. For us in the UK, that’s a massive deal. We’re all battling with strict payload limits and Gross Vehicle Weight (GVW) rules, so every kilo saved counts.

Start with Accurate Measurements

I can’t stress this enough: your van is not a perfect rectangle. It has curved walls, wheel arches that get in the way of everything, and a roof that tapers. Measuring these quirks properly is non-negotiable.

  • Measure Everything, Everywhere: Get the length, width, and height, but do it at multiple points. Measure at floor level, halfway up the walls, and at the ceiling. They will all be different.
  • Map Your Obstacles: You need the exact location and dimensions of the wheel arches, the side door step, and any structural ribs you can’t remove. These are your fixed points.
  • Think in Layers: Remember to subtract the thickness of your insulation, vapour barrier, cladding, and flooring from your initial measurements. This gives you the actual “liveable” space you have to work with.

A classic mistake is taking one measurement and running with it. A Ford Transit, for example, has a noticeable curve in the walls. If you build a dead-straight kitchen unit based on the floor measurement, you’ll find a massive gap at the top. I’ve seen it happen.

Pro Tip: Grab some old cardboard boxes and make full-size templates for tricky areas like the space around the wheel arches or the curve of the rear doors. It lets you physically test furniture shapes in the van before you commit to expensive timber.

Visualising Your Space: From Paper to Pixels

Once you have your true dimensions, it’s time to bring the layout to life. You don’t need to be an architect for this.

For many van builders, old-school graph paper and a pencil is still the best way. Draw the van’s footprint to scale, then use little paper cut-outs for your van conversion furniture, kitchen, and seats. Sliding them around gives you a real, tangible feel for the flow of the space.

If you’re more digitally minded, free software like SketchUp is a game-changer. It lets you build a full 3D model of your van and your furniture. This is brilliant for checking things like headroom, making sure drawers can actually open fully, and just generally visualising how it will all feel. Diving into a detailed guide on designing the perfect campervan layout can give you some more advanced pointers.

No matter which method you use, it helps to have a rough idea of the dimensions of some popular vans to get you started.

Popular UK Van Interior Dimensions

Here’s a quick reference table for the typical load space dimensions of some common UK van models. These are manufacturer specs, so always double-check with your own tape measure, but they provide a solid starting point for your sketches.

Van ModelShort Wheelbase (L x W x H)Long Wheelbase (L x W x H)Typical Payload (kg)
Ford Transit Custom2.55m x 1.77m x 1.40m2.92m x 1.77m x 1.40m680 – 1,450
VW Transporter (T6.1)2.57m x 1.70m x 1.41m2.97m x 1.70m x 1.41m750 – 1,200
Mercedes Sprinter3.27m x 1.78m x 1.71m4.30m x 1.78m x 2.00m1,000 – 2,500
Renault Trafic2.53m x 1.66m x 1.38m2.93m x 1.66m x 1.38m950 – 1,250
Vauxhall Vivaro2.51m x 1.63m x 1.39m2.86m x 1.63m x 1.39m1,000 – 1,400

Remember, these figures are for an empty panel van. Your final internal dimensions will be smaller after you’ve added insulation, cladding, and flooring.

Planning Utilities Before You Build Anything

This is a big one. You have to plan where your electrics, water pipes, and gas lines will run before you build the furniture that will hide them.

Your furniture design absolutely must include access panels for maintenance. Just imagine trying to fix a leaky water pipe that’s buried behind a permanently fixed kitchen unit you’ve scribed perfectly to the wall. It’s a complete nightmare that you can easily avoid.

Design your furniture around your systems. Make sure you can get to your fuse box, water pump, and any gas shut-off valves without having to dismantle half the van. A bit of foresight here will save you a world of pain later on.

Choosing the Best Materials for Your Build

The materials you pick are the very soul of your van build. Get this right, and you’ll have furniture that’s tough, lightweight, and feels like home. Get it wrong, and you’ll be dealing with warped wood, flattened cushions, and unnecessary weight dragging you down.

This isn’t just about what looks good on Instagram; it’s about what survives the reality of UK van life – constant vibration, temperature swings, and the inevitable damp of a rainy Tuesday in Wales. Let’s get into the stuff that actually works.

Plywood: The Backbone of Your Build

Plywood is the go-to for pretty much every van build, and for good reason. It’s strong, relatively light, and you can get it anywhere. But not all ply is created equal. Picking the right sheet for the right job is critical.

  • Birch Plywood: This is the undisputed king. It’s incredibly strong, holds screws like a vice, and has a beautiful, clean finish you can leave exposed. It’s heavier and pricier, yes, but for high-stress jobs like bed frames, kitchen units, and anything structural, its durability is worth every penny.

  • Poplar Plywood: If saving weight is your number one priority, poplar ply is your best friend. It’s significantly lighter than birch but still offers decent strength. I use it for overhead lockers and cabinet doors – anywhere I can shave off kilograms without compromising integrity.

  • Standard Hardwood Plywood: This is your reliable workhorse, the stuff you’ll find in big DIY chains. It’s a good middle-ground option – more affordable than birch but a step up in strength from basic softwood ply. It’s perfect for general cabinetry and internal panels.

If you want to go deeper, this comprehensive guide to plywood types is a great resource for understanding the nitty-gritty of what makes a quality sheet.

A Quick Word on Moisture: Vans get damp. It’s a fact of life. Whatever wood you choose, sealing it is non-negotiable. A few coats of hardwax oil or a decent varnish will protect your hard work from the inevitable condensation and temperature shifts. Don’t skip this.

Beyond the Plywood Panels

While plywood makes the skeleton, other materials bring your living space to life. Thinking about these early on will save you headaches down the line.

The UK furniture market is valued at around £18.78 billion in 2025, which is great news for us. It means there’s a massive industry catering to modular and lightweight components. This competition keeps costs down and makes it easier to find specialist panels and fabrics without massive lead times, even for one-off van builds.

Worktops That Can Take a Beating

Your kitchen worktop needs to be tough. Solid wood looks incredible but it’s brutally heavy and needs constant oiling. A smart compromise is a thinner, 27mm solid wood worktop (like oak or beech), which gives you the look without the insane weight penalty of a full-size kitchen slab.

Another brilliant, and arguably more practical, option is high-quality laminate bonded onto lightweight ply. You get a durable, waterproof, and scratch-resistant surface in a massive range of finishes, all without weighing down your van.

Upholstery Foam and Fabrics

The foam for your seating and bed will make or break your daily comfort. Seriously, don’t skimp here.

  • Foam Density: For seating cushions, you absolutely need high-density foam – it’s usually blue. It provides firm support and won’t turn into a sad, flat pancake after a few months. For a mattress, a firm base layer topped with a softer memory foam gives you the perfect mix of support for your back and comfort for a good night’s sleep.

  • Fabrics: Your fabric choice needs to be tough. Look for upholstery-grade materials with a high “rub count”—they’re designed to handle daily abuse. Think about muddy boots, cooking splatters, and the general grime of life on the road. Stain-resistant or wipe-clean materials are a godsend.

Remember, your furniture is part of your van’s whole ecosystem. There’s no point having beautiful cabinets if you’re freezing cold. Head over to our article on the best insulation for campervans to make sure your build is comfortable all year round. A bit of careful planning now pays off for thousands of miles to come.

Essential Tools and Joinery Techniques for Van Life

You don’t need a pro-level workshop to build brilliant van furniture. I’ve seen some of the best builds come together on driveways and in tiny garages. The truth is, a handful of good tools and a couple of solid joinery methods are all that stand between you and a custom interior that’s strong, stylish, and free from those infuriating rattles on the road.

Building durable furniture is less about having the flashiest gear and more about knowing which tool to grab and how to join two bits of wood so they stay joined, especially when bouncing down a B-road. Let’s get into the essential kit and the techniques that will give your build a solid, long-lasting finish.

Your Core Toolkit: The Absolute Must-Haves

Forget the fantasy of a perfectly kitted-out workshop. You can accomplish almost everything you need with just a few key items.

Here’s the short list that will see you through 90% of your furniture build:

  • A Good Jigsaw: This will be your most versatile cutting tool. It’s the only way to properly scribe panels to the curved walls of your van, and it’s perfect for things like sink cut-outs and shaping corners on your units.
  • A Quality Cordless Drill/Driver: You’ll use this constantly, for everything from drilling pilot holes to driving hundreds of screws. An 18V model with a couple of batteries is a solid investment you won’t regret.
  • A Combination Square: Absolutely essential for marking accurate 90-degree and 45-degree angles. Don’t trust your eye; this little tool is the difference between square cabinets and wonky boxes.
  • A Set of Clamps: You can never have enough clamps. They are your third and fourth hands, holding everything tight while the glue sets or while you’re trying to screw two pieces together on your own.

With just these four things, you can build the entire carcass of your van’s interior. We’ve got a more detailed breakdown in our complete list of essential tools and materials for campervan conversions, which covers absolutely everything you might need.

Tools That Give You a Professional Edge

Once you’ve got the basics covered, a couple of extra tools can seriously speed up your workflow and level up the quality of your finish. These aren’t strictly necessary, but they make a huge difference.

  • A Pocket Hole Jig: This is a genuine game-changer for creating strong, hidden joints quickly. It lets you join wood at right angles without any visible screws on the outside, giving your furniture a much cleaner, more professional look.
  • A Circular Saw: While a jigsaw can technically do long cuts, a circular saw with a guide rail is unbeatable for getting perfectly straight, clean edges on big sheets of plywood. It saves a massive amount of time and sanding later on.

Fundamental Joinery for Rattle-Free Furniture

The way you join your wood is critical. Your furniture will be subjected to constant vibration and twisting forces as the van moves, so your joints need to be tough. Two simple methods will cover pretty much every situation you’ll come across.

Pocket Holes: The DIYer’s Best Friend

This technique uses a special jig to drill a hole at a steep angle into one piece of wood. You then drive a self-tapping screw through that hole and into the second piece. It creates an incredibly strong joint that’s also ridiculously fast to make.

My Experience: For the strongest possible joint, always add wood glue before you screw the pieces together. The screw acts as a powerful clamp, pulling the joint tight while the glue cures, and the glue provides the long-term rigidity that stops things from loosening over time.

This method is perfect for building cabinet carcasses, face frames, and attaching panels where you want the fixings to be completely hidden.

Butt Joints with Screws: A Simple Classic

This is the most basic joinery there is: simply butting two pieces of wood together at a right angle and screwing through one into the other. It’s not as elegant as a pocket hole, but it’s strong, fast, and absolutely fine for many applications.

This approach works best for internal structures that won’t be seen, like support battens or internal cabinet dividers. Just remember to always drill a pilot hole first to stop the wood from splitting, especially when you’re working close to the edge of a plywood sheet.

Vanlifers in the UK are increasingly focused on lightweight, modular builds. This isn’t just a trend; it’s a practical response to our strict payload limits. Industry analysis shows a big shift towards designs that reduce build weight by 10–30%. This push influences everything from material choices to the construction methods we use, making efficient joinery techniques that provide strength without bulk more critical than ever.

Getting Your Hands Dirty: Real-World Furniture Builds

Theory is one thing, but sawdust on the floor and a solid piece of furniture you built yourself is where the real satisfaction kicks in. It’s time to turn those plans and material choices into something tangible. We’ll look at how three essential pieces of van conversion furniture come together.

These are based on common, road-tested designs that I’ve seen work time and again. Think of them as reliable blueprints you can adapt to fit the unique dimensions and quirks of your own van, not as rigid instructions.

We’ll start with the heart of any good layout: the bed. Then, we’ll move on to a hardworking kitchen unit and finish with some much-needed overhead storage.

The Convertible Bed and Dinette System

Let’s be honest, a permanent fixed bed is a luxury most medium-sized vans just can’t afford. The classic solution is a clever convertible system that serves as a comfy seating and dining area by day and a spacious bed by night. The U-shaped or L-shaped lounge is popular for a reason—it’s just incredibly efficient with the space you have.

The core of this build is three simple boxes: two long benches running down the sides of the van and a shorter box connecting them at the back to form your seating. When it’s time to sleep, you bridge the gap between the benches with slats or removable panels. These rest on ledges you’ve built into the bench framework. Then, you just rearrange the seat cushions to form a surprisingly comfortable mattress. Simple, but it works.

A Few Key Pointers:

  • Bench Height: Aim for a comfortable seating height of around 45cm, and don’t forget to include the thickness of your cushions in that measurement. This is the sweet spot that lets most people sit with their feet flat on the floor.
  • Support Ledges: Grab a sturdy wooden batten (something around 40mm x 20mm is perfect) and fix it along the inside top edge of each long bench. This is what your bed slats will rest on, so glue and screw it properly—it’s taking a lot of weight.
  • Lid Access: Make your life easier by hinging the tops of the benches. This creates massive, easily accessible storage bins underneath. Piano hinges are brilliant for this as they spread the load evenly along the whole lid.
  • Table Mount: You’ll want to install a table leg mount in the floor space between the benches. Something like a Sequoia or a Lagun leg system lets you have a removable table that can be stowed away at night or when you just need more room to move.

I’d build the main structure from 15mm birch plywood. It has all the strength you need to support people sitting and sleeping, but you can build the internal framing with lightweight timber battens to keep the weight down.

A Tip from Experience: When you’re cutting the plywood panels for the benches, think about ventilation. I always use a hole saw to drill a series of large holes in the panels that face inwards. This allows air to circulate inside those big storage areas, which is absolutely crucial for preventing condensation and damp, especially if you plan on storing bedding or clothes in there.

The Compact Kitchen Galley

Your kitchen unit is probably the hardest-working piece of furniture in the entire van. It needs to house a sink, a hob, your water containers, and provide that precious bit of worktop space, all within a tiny footprint. A simple, strong cabinet is the only way to go.

The basic structure is just a box. I typically build the main carcass from 15mm or 18mm plywood to make sure it’s robust enough to handle the weight of water tanks and a solid worktop. An internal divider is a good idea to separate the “wet” area (water tanks) from the “dry” area where you might keep your gas bottle or other supplies.

Making Those Critical Cut-Outs:

Your new sink and hob will come with a paper template. Whatever you do, don’t lose it.

  1. Positioning: Lay the template on your worktop and play around with the position. Make sure you leave enough structural wood around the edges for strength. Just as important, have a quick check underneath to ensure you have enough clearance for the depth of the sink bowl and the gas fittings for the hob.
  2. Drilling Corners: Drill a pilot hole inside each corner of the template’s cut-out line. Make the hole big enough for your jigsaw blade to easily fit through.
  3. Cutting: Using a jigsaw with a fine-toothed blade (this gives a much cleaner cut on plywood), carefully follow the template line from one corner hole to the next. The key here is to go slow. Rushing is how you make mistakes you can’t undo.

For the cabinet doors, you can drop down to a lighter 12mm plywood to save a few kilograms. A set of concealed cabinet hinges and some strong magnetic catches will give you a clean, professional finish and, more importantly, stop the doors flying open every time you take a sharp corner.

Lightweight Overhead Storage Lockers

Overhead lockers are absolutely essential. They get clothes, food, and all sorts of other stuff up and out of the way, freeing up that valuable floor-level space. The real challenge here is building them strong enough to hold your gear but light enough that they don’t pose a safety risk or eat into your precious payload.

The secret is to use lighter materials and clever construction. I’ve found a combination of 12mm poplar plywood for the main body and a thinner 4mm or 6mm plywood back panel is a great recipe for saving weight. It’s that back panel, scribed perfectly to the curve of your van’s wall and ceiling, that gives the whole unit its rigidity once you fix it in place.

My Go-To Construction and Mounting Strategy:

  • First, build the locker as a simple box on your workbench. It’s far easier than trying to build it in-situ.
  • I use pocket holes and wood glue for the main joints. This creates a really strong but surprisingly lightweight frame without adding bulky timber battens.
  • For the door, go with an upward-opening design supported by gas struts or locker stays. Trust me, it’s far more convenient than a side-opening door when you’re standing right underneath it.
  • When it comes to mounting, you must secure the locker to the van’s metal ribs, not just to the wooden cladding. Use rivet nuts (also called nutserts) inserted directly into the van’s structural metalwork. This creates a rock-solid mounting point that will never, ever come loose.

How to Securely Mount Furniture in Your Van

Right, let’s talk about the single most important part of your furniture build: anchoring it so it doesn’t try to kill you. You can craft the most beautiful birch ply kitchen unit in the world, but if it isn’t bolted down properly, it’s just a massive, dangerous projectile waiting for you to brake hard.

This isn’t about stopping a few annoying rattles on a bumpy road; this is a fundamental safety issue. We need to attach every single piece of furniture directly to the van’s strong, structural metal frame—not the lovely but flimsy plywood cladding you just spent weeks installing.

Let’s be crystal clear: a few screws into your wall panels will do precisely nothing. They have zero structural integrity and will rip out with the slightest bit of force. We’re going to cover the proper methods for creating rock-solid anchor points that keep your furniture, and you, safe on the road.

Before you get the saw out, it’s worth thinking about what you should build first. Your core needs should dictate your priorities.

This simple decision tree helps you figure it out. If your main goal is having a place to sleep, the bed frame comes first. If it’s cooking, the kitchen pod is your starting point. Don’t overcomplicate it.

Finding and Using Structural Points

Your van’s chassis is its skeleton. It’s a network of vertical ribs and horizontal support beams that give the vehicle all its strength. These are the only places you should be anchoring heavy items like beds, kitchens, or overhead lockers.

Finding them is easy. Just tap along the inside of your van walls—you’ll hear a solid thud instead of a hollow echo when you’re over a rib. A strong magnet slid along the wall works just as well, as it will stick firmly to the steel frame underneath.

Once you’ve located these structural points, you’ve got a few solid options for creating a fixing point. The method you pick really depends on how heavy the furniture is and where you’re mounting it.

Common Fixing Methods

Securing your furniture properly is non-negotiable, and there are several tried-and-tested methods. Below is a quick comparison of the most common techniques I’ve used and seen in countless other builds.

Comparing Furniture Fixing Methods

Fixing MethodTools RequiredBest ForStrength Rating
Through-BoltingDrill, Spanner/Ratchet, Drill BitsSecuring heavy base units, bed frames, and kitchen pods directly to the van’s structural ribs. The gold standard for anything substantial.★★★★★ (Bombproof)
Rivet Nuts (Nutserts)Rivet Nut Tool, Drill, Drill BitsMounting overhead lockers, wall cabinets, and shelving where you can’t access the back of the metal. Creates a permanent threaded insert.★★★★☆ (Very Strong)
Self-Tapping ScrewsImpact Driver or DrillAttaching lightweight trim, cladding battens, or small, non-structural items directly into the metal frame. Never for heavy furniture.★★☆☆☆ (Light Duty Only)
Bolting to FloorDrill, Spanner/Ratchet, SealantAnchoring units to the van floor, especially when combined with wall fixings. Requires checking underneath the van for obstructions.★★★☆☆ (Good, as part of a system)

Each method has its place, but for anything that carries significant weight, through-bolting and rivet nuts are the only options I’d ever trust.

Safety First: Always Check Before You Drill
This is the golden rule. Before you drill a single hole, get under the van and check what’s on the other side. The last thing you want is to drill through your fuel tank, a brake line, or a critical wiring loom. This is a five-minute check that can save you from a catastrophic and expensive mistake.

Dealing with Those Annoying Curved Van Walls

One of the biggest headaches in any van build is that absolutely nothing is flat or straight. Trying to fix a square-backed cabinet to a curved van wall will leave you with ugly gaps and a unit that isn’t properly supported, leading to squeaks and stress fractures down the line.

The solution is simple and effective: wooden battens.

By fixing timber battens horizontally to the van’s structural ribs first, you create a perfectly flat, vertical mounting surface for your furniture to sit flush against. This makes installation a thousand times easier and adds another layer of strength to the entire structure. For a pro finish, take the time to scribe the back of the batten to match the van’s curve. This gives you a perfect, solid fit and ensures your van conversion furniture is rock-solid and completely silent on the move.

Common Questions About Van Conversion Furniture

As you get deeper into the build, you’ll start hitting the same walls everyone else does. It’s totally normal. Every single van lifer has wrestled with the exact same dilemmas over weight, the DVLA, and getting a finish on their plywood that actually lasts.

I’m going to tackle some of the most frequent questions I hear from fellow UK builders. These are clear, practical answers based on years of doing this stuff for real, designed to get you past the roadblocks and building with confidence.

How Can I Make Furniture Lighter Without Sacrificing Strength?

This is the classic van conversion balancing act, and the secret isn’t just using thicker wood everywhere. It’s about being clever with your materials and design. It’s about building smarter, not just bigger.

First up, your choice of plywood is critical. Go for lightweight poplar or a quality birch ply instead of standard MDF or those heavy, cheap sheets you see at DIY stores. Using thinner sheets, like 12mm or 15mm for the main cabinet carcasses, makes a massive difference straight away. You can then reinforce the critical stress points with internal timber battens rather than making the whole thing from heavy 18mm board.

Another fantastic technique is to build frames from aluminium angle or box section. Once you have these super-strong, feather-light frames, you can clad them with very thin plywood—maybe only 4-6mm thick. This composite approach gives you incredible rigidity for a fraction of the weight of a solid timber build.

Here’s a simple but brilliant weight-saving trick: use a hole saw to cut large circles out of any internal panels that aren’t visible, like cabinet dividers or the base of your bed. It might not look like much, but shaving off all those little bits of wood really adds up to a significant weight reduction across the entire build.

Do I Need to Inform the DVLA About My Furniture?

This is a big one for UK converters, and the short answer is: it depends on how permanent your build is. If you bolt in fixed furniture that fundamentally changes the vehicle’s purpose from a panel van to a ‘motor caravan’, then yes, you absolutely need to apply for reclassification with the DVLA.

To meet the DVLA’s official criteria for a motor caravan, your conversion generally needs to have fixed features like:

  • A bed, which can be converted from seating
  • A water storage tank and a tap
  • A fixed table and seating area
  • Permanent cooking facilities
  • At least one window on the side of the main living area

Now, if your van conversion furniture is modular and designed to be easily taken out, you might not need to re-register the vehicle. But—and this is the crucial part—you must inform your insurance provider of all modifications, no matter how temporary. They often have much stricter requirements than the DVLA, and failing to declare your conversion could completely invalidate your policy if you need to make a claim.

What Is the Best Way to Finish Plywood Furniture?

Getting a durable finish on your plywood is vital. It’s what protects your hard work from the knocks, spills, and condensation that are just part of van life.

For a beautiful, natural look, a couple of coats of a hardwax oil (like Osmo Polyx-Oil) is a brilliant choice. It soaks into the wood to protect it from within and is incredibly easy to touch up if you get a scratch. No sanding the whole thing down, just a quick dab on the affected area.

If you need something tougher and more waterproof, especially for a kitchen worktop, you can’t beat a polyurethane varnish.

For those wanting a painted finish, preparation is everything. Seriously, don’t skip this. Always start with a quality wood primer to seal the ply and stop the grain from bleeding through your paint. Once that’s dry, follow up with two or three coats of a durable satin or eggshell paint. This will give you a hard-wearing surface that’s a doddle to wipe clean.


At The Feral Way, we provide tried-and-tested advice for every stage of your UK van conversion, from initial planning to hitting the road. Check out our other guides for more no-nonsense tips at https://www.theferalway.com.

I’ve insulated four vans, learning about the best insulation for campervans along the way. The first one was a disaster that cost me £600 and left me shivering through a January in the Cairngorms. The fourth? I’m typing this in my pants at 7am in February, and it’s perfectly comfortable.

The difference wasn’t fancy materials or secret techniques. It was understanding what actually works in British weather, where to spend money, and where to save it.

Here’s everything I learned the expensive way, so you don’t have to.

Why Van Insulation Matters in the UK

Let’s be honest — Britain isn’t known for its tropical climate. We’ve got damp winters, unpredictable summers, and more condensation than you’d think physically possible in a small metal box.

Good insulation does three critical jobs:

It keeps you warm. Obvious, but worth stating. An uninsulated metal van is basically a fridge in winter. I’ve woken up to ice on the inside of my windows more times than I care to admit, and it’s properly miserable.

It reduces condensation. This is the big one everyone underestimates. Warm air meets cold metal, and suddenly you’ve got water running down your walls. That leads to mould, rust, and that distinctive damp smell that screams “I live in a van.” Not the vibe you’re going for.

It keeps you cool in summer. Metal boxes heat up fast when the sun hits them. Proper insulation creates a thermal barrier that makes those rare British heatwaves actually bearable.

When it comes to finding the best insulation for campervans, the right materials can make all the difference in comfort and energy efficiency.

Skip insulation or do it badly? You’ll regret it every single night.

The Insulation Types That Actually Work

There’s a lot of nonsense talked about van insulation online. Instagram vanlifers swear by expensive solutions. Forums argue endlessly about R-values. Here’s what matters in the real world.

1. PIR Boards (Celotex/Kingspan) — The Gold Standard

What it is: Rigid foam boards with foil backing, typically 25mm or 50mm thick.

Price: £25-45 per sheet (2400mm × 1200mm) from builders’ merchants

These are what most professional converters use, and there’s a reason for that. PIR (polyisocyanurate, if you’re interested) boards offer the best thermal performance per millimetre of thickness. That matters when you’re working in tight spaces.

I’ve used Celotex in my last two conversions. It’s easy to cut with a sharp knife, fits snugly between ribs, and doesn’t absorb moisture. The foil backing acts as a vapour barrier, which is crucial for stopping condensation.

The downsides? It’s not available on Amazon — you’ll need to visit a builders’ merchant like Wickes, Selco, or Travis Perkins. It’s also rigid, which means cutting lots of awkward shapes for curved van walls. And if you don’t seal the edges properly, you’ll get thermal bridging (cold spots where heat escapes).

Best for: Walls, floor, and roof where you have relatively flat surfaces. Main living areas where thermal performance matters most.

Cost per square metre: £4-8 depending on thickness

2. Armaflex (Closed-Cell Foam) — For Awkward Spaces

What it is: Flexible, self-adhesive foam sheets in various thicknesses (6mm to 25mm).

Check price on Amazon UK — available in pre-cut sheets

This is my secret weapon for all those curved sections, wheel arches, and tight corners where PIR boards won’t fit. Armaflex is closed-cell foam, which means it doesn’t absorb water — critical for a van that’s basically a condensation factory.

It sticks directly to metal with decent adhesive backing (though I always reinforce with contact adhesive in high-stress areas). It’s much easier to work with than rigid boards, and you can build up layers if you need more thickness.

I use 10mm Armaflex for door panels, 19mm for wheel arches, and 6mm for any weird curves or gaps between PIR boards. It’s more expensive per square metre than PIR, so I don’t use it everywhere — just where it makes life easier.

The catch? Lower R-value than PIR for the same thickness. And the adhesive backing isn’t always reliable on dusty or oily metal. Clean your surfaces properly, or it’ll peel off six months later. Trust me on this.

Best for: Doors, wheel arches, curved sections, gaps between other insulation. Anywhere PIR boards don’t fit easily.

Cost per square metre: £8-15 depending on thickness

Get Armaflex from Amazon UK

3. Sheep’s Wool (Thermafleece) — The Eco Option

What it is: Literal sheep’s wool treated to resist pests and moisture, comes in rolls or batts.

Price: £30-50 for a 7.5kg roll from eco suppliers

I’ll admit, I was sceptical about this. Wool in a metal box that gets damp? Sounds like a mould farm waiting to happen. But I tried it in my third van, and it’s actually brilliant for certain applications.

Sheep’s wool is breathable, which means it manages moisture naturally rather than trapping it. It’s also excellent at acoustic dampening — your van will be noticeably quieter. And if you care about eco credentials, it’s about as natural as insulation gets.

The thermal performance isn’t quite as good as PIR per centimetre, but it’s decent. Where wool really shines is in the roof, where you’ve got space and where acoustic dampening makes a real difference when rain hammers down.

The problems? It’s not widely available on Amazon UK (you’ll find some sheep wool insulation options here, but selection varies). It compresses over time, especially in vertical applications. And while it’s treated, you need good ventilation or you can still get moisture issues.

Best for: Roof insulation where you have depth. Secondary insulation layer where you want acoustic benefits.

Cost per square metre: £8-12 for adequate coverage

4. Reflectix / Thermal Foil Bubble Wrap — Overrated Rubbish

What it is: Bubble wrap with reflective foil on both sides.

Available on Amazon UK

Right, controversial opinion time: Reflectix is mostly useless for van insulation.

I see it recommended constantly, especially in American vanlife content. And it does have one legitimate use — as a reflective radiant barrier if you install it with an air gap on both sides. That means battening out your walls, which costs space and money most people don’t have.

Without those air gaps? It’s basically expensive bubble wrap with an R-value of about 1. That’s terrible. A 25mm PIR board has an R-value around 4.5 for comparison.

I wasted £120 on Reflectix in my first van, convinced it would work because everyone on Instagram used it. It didn’t. I froze. Don’t make my mistake.

The only time I use it now: As a vapour barrier behind PIR boards if I haven’t got foil-backed boards. Or for windscreen covers. That’s it.

Best for: Windscreen covers, emergency blankets, making your van look pretty for Instagram while doing bugger all for warmth.

Cost per square metre: £3-6 (still overpriced for what it does)

5. Spray Foam — For Professionals Only

What it is: Expanding polyurethane foam applied with specialist equipment.

Price: £150-300 for DIY kits, £1,500+ for professional application

Spray foam fills every gap and cavity perfectly, creating an airtight thermal barrier. Professional converters love it because it’s fast and effective.

For DIY? It’s a nightmare waiting to happen.

I tried a cheap spray foam kit from Amazon. It expanded more than expected, pushed my wall panels out, and made a sticky mess that took hours to clean. The stuff that landed where I wanted it worked fine, but I wasted half the kit on mistakes and overcorrection.

If you’re getting your van professionally converted, spray foam makes sense. For DIY, stick with boards and foam sheets you can measure, cut, and control.

DIY spray foam kits on Amazon UK — proceed with extreme caution

Best for: Professional converters, filling small gaps and cavities after main insulation is done, people who enjoy chaos.

Cost: Varies wildly, usually not worth the hassle for DIY

6. Acoustic Deadening (Dynamat / Dodo Mat) — Not Insulation, But Important

What it is: Heavy rubber-like sheets that dampen vibrations and road noise.

Check Dodo Mat on Amazon UK

This isn’t thermal insulation — it’s acoustic deadening. But it matters more than you think.

Vans are loud. Engine noise, road rumble, rain on the roof — it’s all amplified by bare metal panels. Acoustic deadening goes directly onto metal before any other insulation, reducing vibrations and making everything quieter.

I use Dodo Mat (cheaper than Dynamat, works just as well) on floors, doors, and the roof. You don’t need 100% coverage — focus on the largest flat panels where noise reverberates most.

Does it provide thermal insulation? Minimal. But it makes your van feel more like a home and less like a biscuit tin on wheels. Worth the investment.

Best for: Large flat metal panels, anywhere you want to reduce road noise and vibration. Apply before other insulation.

Cost per square metre: £5-10

Get Dodo Mat from Amazon UK

My Recommended Insulation Strategy

After four vans, here’s the system I use now. It balances performance, cost, and practicality.

Step 1: Acoustic Deadening (Optional but Recommended)

Cover 30-50% of large flat panels with Dodo Mat or similar. Focus on:

  • Roof (especially above sleeping area)
  • Floor
  • Sliding door
  • Rear doors

Cost: £100-150 for adequate coverage

Step 2: Main Insulation

Floor: 25mm PIR boards between battens, sealed at edges Walls: 25mm PIR boards between ribs, gaps filled with expanding foam Roof: 50mm PIR boards if space allows, or 25mm PIR + sheep’s wool layer Doors: 10-19mm Armaflex, easy to fit around window mechanisms

Cost: £300-450 for materials

Step 3: Awkward Bits

Use Armaflex for:

  • Wheel arches
  • Curved sections
  • Gaps between PIR boards
  • Door pillars
  • Any tight corners where PIR won’t fit

Cost: £80-120

Step 4: Vapour Barrier

If your PIR boards aren’t foil-backed on the interior side, add a vapour barrier. This stops warm, moist air from inside your van reaching cold metal and condensing.

Options:

  • 1200 gauge polythene sheet (cheap, effective)
  • Reflectix (expensive, but works as vapour barrier)
  • Foil-backed insulation boards (built-in barrier)

Tape all seams with foil tape. Don’t skip this — it’s the difference between a dry van and a condensation nightmare.

Cost: £20-40

Total cost for full van insulation: £500-760 if you DIY

Installation Tips

1. Clean Your Metal Properly

Grease, dust, and loose rust will stop adhesive working. I learned this when Armaflex sheets peeled off my door panels three months after installation.

Use panel wipe or isopropyl alcohol. Get it properly clean. It’s boring, but it matters.

2. Treat Rust Before Insulating

You’re about to seal moisture against metal for years. Any existing rust will spread like wildfire under your nice new insulation.

Wire brush or sand any rust back to bare metal. Treat with rust converter. Let it dry completely. Then insulate.

I didn’t do this in van number one. Two years later, I had rust holes in my floor. Expensive lesson.

3. Don’t Create Moisture Traps

Any cavity you create can trap moisture if you seal it completely. This is especially important in the roof, where warm air rises and condensation forms.

Options:

  • Leave small ventilation paths for air circulation
  • Use breathable insulation (like sheep’s wool) in cavities
  • Install ventilation fans (Maxair or Fantastic Fan)

I’ve got two roof vents in my current van — one at the front, one at the back. Creates airflow, evacuates moisture, prevents mould. Critical in UK dampness.

4. Seal Everything

Every gap between insulation boards is a thermal bridge where heat escapes and cold metal is exposed. That’s where condensation forms.

Use expanding foam (the cheap stuff from Screwfix is fine) to fill every gap. Let it cure, trim off excess, seal with foil tape.

Yes, it’s tedious. Yes, it matters.

5. Don’t Compress Insulation

Insulation works by trapping air. Compress it, and you reduce its effectiveness dramatically.

This mainly applies to wool or foam insulation. Don’t squash it behind wall panels or under flooring. Give it space to do its job.

6. Test Before You Seal

Install insulation, but don’t rush to fit wall panels immediately. Wait for a cold night or rainy day. Check for condensation forming anywhere.

Found a problem? Fix it now. Once wall panels are up, you’re committed.

Common Mistakes

Mistake 1: Not Enough Roof Insulation

Heat rises. Your roof is where you lose the most warmth and where condensation forms worst. I used 25mm insulation in my first van’s roof because that’s all I had left. Terrible decision.

Use the thickest insulation you can fit in the roof — ideally 50mm. And seriously consider double-layering with wool for extra performance and acoustic benefits.

Mistake 2: Forgetting the Floor

Cold feet make everything miserable. An uninsulated floor sucks heat out of your van and makes it impossible to get warm.

I insulated my floor properly from van number two onwards — 25mm PIR boards between timber battens, sealed edges, plywood over the top. Massive difference.

Mistake 3: Insulating Over Electrics

I buried wiring under insulation in my first van. When I needed to add a socket six months later, I had to rip out insulation to access cables.

Run all your electrical conduit and wiring BEFORE insulation goes in. Leave service loops at logical points. Thank me later.

Mistake 4: No Vapour Barrier

For two years, I didn’t understand vapour barriers. My van was always slightly damp, and I couldn’t figure out why.

The problem: warm, moist air from cooking and breathing was penetrating insulation and condensing on cold metal behind it. The solution: a proper vapour barrier on the warm side of insulation.

Add this. It’s cheap. It works.

Mistake 5: Insulating Windows

Yes, I’ve seen people try this. Yes, it’s pointless.

Windows are your main source of light and ventilation. They’re going to leak heat no matter what. Accept it. Use thermal curtains or reflective covers at night, and focus your insulation efforts on walls, roof, and floor.

Real Cost Breakdown: My Last Van

Here’s exactly what I spent insulating my current van (LWB high-roof Sprinter):

Acoustic deadening:

  • 3 rolls Dodo Mat (20 sheets): £90

Main insulation:

  • 6 sheets Celotex 25mm (walls/floor): £180
  • 4 sheets Celotex 50mm (roof): £160
  • 2 rolls Armaflex 19mm: £75
  • 1 roll Armaflex 10mm: £35

Sealing & barriers:

  • 4 cans expanding foam: £20
  • Foil tape (2 rolls): £15
  • Sikaflex (2 tubes): £25

Total: £600

That’s for a large van with acoustic deadening. A smaller van (VW Transporter size) would be £400-500. A basic job without acoustic deadening could be done for £300-350.

Is it worth it? Absolutely. I’ve slept comfortably in -5°C weather. No condensation. No mould. And my diesel heater barely runs because the insulation keeps warmth in.

Frequently Asked Questions

Q: What R-value do I need?

Honestly? R-values are overrated for van insulation. You’re working with limited space and curved surfaces — you’ll never achieve the R-values recommended for houses.

Focus instead on filling every gap, preventing thermal bridges, and using the best insulation you can fit in the space available. 25mm PIR boards (R-value around 4.5) are adequate for UK weather if properly installed.

Q: Should I insulate my van windows?

No. Use thermal curtains or reflective screens at night, but don’t insulate the windows themselves. You need light and ventilation.

Q: Can I use house insulation in my van?

Depends. Fibreglass loft insulation? No — it absorbs moisture and compresses, becoming useless. PIR boards designed for house walls? Yes, they’re the same product. Rockwool? Maybe, but it’s heavy and prone to moisture issues without excellent ventilation.

Q: How do I stop condensation completely?

You don’t. You manage it. Good insulation plus vapour barrier reduces condensation dramatically, but you’ll still get some moisture. Combat it with:

  • Roof vents (critical)
  • Crack windows when cooking
  • Don’t dry wet clothes inside
  • Use moisture-absorbing products in winter
  • Wipe down obvious condensation daily

Q: Is more insulation always better?

No. You’re balancing thermal performance against:

  • Space (thick insulation reduces living space)
  • Weight (important for payload limits)
  • Moisture management (some insulation types trap moisture if layered incorrectly)

There’s a point of diminishing returns. 25-50mm of good insulation properly installed beats 100mm of crap insulation with gaps and thermal bridges.

Q: Can I insulate my van in winter?

Yes, but with caveats. Some adhesives don’t work below 5°C. Spray foam expands unpredictably in cold temperatures. And working in a freezing metal box is miserable.

If you must work in winter, bring a space heater to warm the van first, or work during the warmest part of the day.

Q: How long does van insulation take to install?

For a DIY job:

  • Acoustic deadening: 1 day
  • Main insulation (walls, floor, roof): 3-5 days
  • Finishing (sealing, vapour barrier): 1-2 days

Budget a week of solid work for a thorough job. Rush it, and you’ll miss gaps and thermal bridges that haunt you later.

Q: Will insulation stop my van heating up in summer?

It helps, but British summers are rarely that extreme. The bigger factor is ventilation — roof vents, window position, parking in shade.

Insulation slows heat transfer both ways, so it does reduce how fast your van heats up in sun. But once it’s hot, you need ventilation to cool it down.

Where to Buy (UK Sources)

Celotex/Kingspan PIR Boards:

  • Wickes (trade counter, best prices)
  • Selco (trade account helpful but not essential)
  • Travis Perkins
  • Screwfix (limited selection)

Armaflex & Flexible Foam:

  • Amazon UK (good selection, quick delivery)
  • Toolstation
  • Screwfix

Acoustic Deadening:

  • Amazon UK – Dodo Mat (best prices)
  • eBay (watch for sales)

Sheep’s Wool:

  • The Natural Building Store
  • Ecological Building Systems
  • Amazon UK (limited selection)

Expanding Foam, Tape, Adhesives:

  • Screwfix (cheapest)
  • Toolstation
  • Amazon UK (convenience)

Pro tip: Buy PIR boards from trade counters early morning or late afternoon — you’ll get offcuts and damaged sheets cheap. I’ve saved £100+ doing this. Cosmetic damage doesn’t matter when it’s hidden behind walls.

My Final Thoughts

Insulation isn’t sexy. It’s not going to get you Instagram likes. But it’s the single most important decision you’ll make in a van conversion.

Spend money here. Do it properly. And I promise you’ll be comfortable in your van for years to come.

Skimp on insulation, and you’ll spend every cold night regretting it. I know, because I did exactly that in van number one. The £600 I thought I saved cost me in misery, condensation, and eventually ripping it all out to start again.

My current van? It’s properly insulated. I’ve slept in Scottish winters. Welsh rainstorms. That weird humid heat we get in July. And it’s always been comfortable.

That’s not luck. That’s decent insulation, properly installed, with attention paid to the boring details everyone skips.

Do it right the first time. Your future self will thank you.


Affiliate Disclosure: This article contains Amazon affiliate links. If you purchase through these links, I may earn a small commission at no extra cost to you. This helps keep TheFeralWay running and allows me to keep testing gear and building vans. I only recommend products I’ve genuinely used or thoroughly researched.