Van Life: Top Conversion Ideas for Your Next Adventure

The best base van for a camper conversion is a medium or large panel van with a high roof, a long enough wheelbase to sleep across or along, and a service history you can actually read — most people land on a VW Transporter, a Ford Transit or Transit Custom, a Vauxhall Vivaro or Renault Trafic, or a Fiat Ducato or Peugeot Boxer for a bigger build. The conversion is the fun part. The van underneath it decides whether the fun lasts.

This guide sits under our Choosing the Right Van guide, part of the Van Guides hub. One thing straight away, because it should shape how much weight you give our opinion: we have never sold a campervan. We sell the base vehicles people convert, not the finished conversions — so this page is about choosing the van, and we will not pretend to expertise in the build.

Choosing a base van for a conversion

Almost every regret we hear about a conversion traces back to the van rather than the build, and usually to one of three decisions made too quickly.

1. Buying too small. A short-wheelbase, standard-roof van looks like a bargain and becomes a very cramped camper. You cannot stretch it later.
2. Buying too tired. A conversion is a serious investment of money and weekends, fitted into a vehicle. Putting that on a van with an unknown history is the most expensive mistake available here.
3. Buying the wrong shape. Wheel-arch intrusion, a sliding-door position and the width between the arches all decide whether a bed fits across the van or has to run lengthways — and that changes the whole layout.

Work in this order: how you will sleep, then roof height, then wheelbase, then the model. The other way round is how people end up designing around a van they already bought.

Which vans convert best, and why

There is no single right answer, but there is a clear shortlist and each has a reason.

• Volkswagen Transporter. The classic. Enormous aftermarket support, every part and kit made for it, and strong resale on the finished conversion. You pay for all of that at purchase.
• Ford Transit Custom. Much the same case with a lower entry price and a very good driving position. Increasingly the sensible person’s Transporter.
• Vauxhall Vivaro and Renault Trafic. Mechanically the same van as each other, widely available and the value route into a medium conversion. Roomier inside than their footprint suggests.
• Ford Transit and Fiat Ducato / Peugeot Boxer / Citroën Relay. The large options, and the ones to choose if you want to stand up, sleep across the van and fit a washroom. The Ducato family is unusually square inside, which makes furniture easier.
• Mercedes Sprinter. Popular for long-term builds and long distances, with a premium to match.

The genuinely useful selection criterion is not the badge, though — it is how square the load bay is and how much aftermarket support exists. A van with flat sides and a thriving parts community will take half the hours to convert of one you have to improvise around.

Wheelbase and roof height for a conversion

These two decisions constrain the build more than anything else, and they are the ones worth being fussy about.

Roof height. Standing up inside changes a conversion from camping to living. A factory high roof is the tidiest solution; a pop-top keeps the van under height barriers and garages but adds cost and a maintenance item; a standard roof means a build you kneel in. Before you commit to a high roof, check the height restrictions where you actually park.

Wheelbase. The question is simply whether you can sleep across the van. In most medium vans you cannot without a bed that extends, so the bed runs lengthways and eats the whole side. In most large vans you can, which frees the length for a kitchen and a washroom. That single fact is usually what decides medium versus large.

Payload. Easy to forget and important: a conversion is weight — furniture, water, batteries, gas, a leisure battery bank, and everything you pack. Check the plated weight on the VIN plate and keep a real margin. Our forthcoming guide SWB, MWB or LWB: which length do you need? covers the length and roof codes in detail.

What to check on a van you intend to convert

The whole ordinary inspection applies — our complete guide to buying a used van runs it in order. These are the checks that matter more when a conversion is going in.

1. Rust, and then rust again. Sills, arches, the load-floor lip, the door bottoms and around the rear hinges. Once panels are lined and insulated you cannot see or treat corrosion, so it must be right before the build starts.
2. Any existing roof holes from racks, beacons or aerials, and how they were sealed. You are about to add insulation that will hide a leak for years.
3. Mechanical health over cosmetics. Scuffed panels do not matter on a van you are about to fill with plywood. A tired clutch, a doubtful cambelt history or a smoky engine matter enormously.
4. The electrical system. You will be adding a leisure battery, a split charge and possibly solar. A van with tidy factory wiring and no aftermarket splices makes that far simpler.
5. Load bay measurements, taken yourself: length at floor level, width between the arches, and height under the roof ribs.
6. Service history, weighted heavily. This vehicle needs to last well beyond the build.

Telling DVLA once you have converted it

Converting a van into a motor caravan changes the vehicle, and there is a process for recording that. It is worth understanding before you build, because some of the requirements are about permanent fixtures rather than paperwork.

You apply to change the body type on the V5C once the conversion meets the criteria, and gov.uk sets out how to change vehicle details on a V5C registration certificate. If the work is extensive enough to count as a rebuilt or radically altered vehicle, approval may be needed as well — gov.uk’s vehicle approval guidance covers when that applies.

Two practical consequences worth planning for. Insurance for a converted van is a different product from van insurance, and insurers will ask what the conversion involves. And the reclassification affects how the vehicle is treated in some tax and charging contexts — none of which is a reason not to convert, but all of which is easier settled early than discovered late.

Conversion ideas that suit a first build

Keeping the first build simple is the most common piece of advice from people who have done several, and it is worth taking.

• A fixed bed across or along the back, with storage underneath in a garage space. Simple, strong, and it removes the nightly conversion routine.
• A modest kitchen unit — a single hob, a sink with a water container underneath, and a worktop that doubles as a desk.
• A leisure battery with a split charge relay before you consider solar. It covers most weekend use on its own.
• Insulation and a vapour barrier done properly, because it is the one thing you cannot revisit and the one that decides whether the van is usable outside summer.
• A roof vent or fan, which does more for condensation than any amount of heating.
• Removable rather than fixed furniture where you can — it keeps options open and helps if you later want the van back.

Resist the temptation to design a full washroom into a first build in a medium van. It is the item most often removed in a second build.

Buying the base van

Buy the van the way you would buy a work van, because that is what it is until the day you convert it. Documented history, sound structure, honest seller.

Be flexible on colour and trim — you are about to line the inside anyway, and a plain ex-work van in good mechanical order is very often the better base than a tidier one with an unclear past. A previously liveried van is worth considering for exactly this reason.

And judge who you are buying from as carefully as the vehicle: how to judge a used van dealer sets out those checks, and our guide to buying a van covers the process.