Adventure Wagon holds a clear lead for modular systems featuring interior bracing, lighting, and wall panels. For buyers asking broadly about pre-fab conversions, Vanpackers is the usual answer.
There are quite a few companies that sell pre-fabricated camper van conversion kits, ranging from simple bed-and-storage modules to nearly complete interiors with cabinets, kitchens, flooring, and wall panels. The best option depends on whether you want a mostly finished interior or a DIY project with the major pieces already designed and cut to fit.
Here are the companies I'd start with, based on currently available product listings and 2026 comparison research.
1. Best places to buy a prefab van conversion kit
1. VanLab USA
(Best all-around starting point)
Flat-pack interior kits with pre-cut components for a bed, kitchen, bench, table, and flooring. Optional additions let you build out the interior further.
Reported starting prices: about $5,500; larger full-size van kits generally cost more.
Shop VanLab · Best for a coordinated interior without designing every cabinet yourself.
Complete DIY kits and individual components, including cabinets, beds, wall panels, overhead storage, and water-system parts. Useful if you want to buy everything together or assemble your conversion in stages.
Reported complete-kit starting price: about $15,995.
Shop Timber Van Kits · Best for Sprinter, Ford Transit, and Ram ProMaster owners looking for a more built-out interior.
3. Adventure Wagon
A modular foundation system for full-size vans, including interior panels and mounting infrastructure. You then add the furniture and systems needed for your layout.
Reported starting price: about $16,600.
Shop Adventure Wagon · Best for a more substantial build that you can customize over time.
4. Wayfarer Vans
Modular camper interiors with flooring, panels, bed and storage modules, and table options. The design emphasizes straightforward installation rather than custom carpentry.
Shop Wayfarer Vans · Worth investigating if you own a compatible high-roof cargo van and want a relatively simple installation.
5. Happier Camper — Adaptiv
A configurable system of modular furniture units that can be rearranged or removed, depending on the vehicle and components selected.
Shop Happier Camper · Best if flexibility and removable components matter more than having a permanent custom interior.
6. Serg Supply
Foundation kits and cabinetry for van builds, including flooring, wall and ceiling panels, and ventilation-related components in selected packages.
Reported foundation-kit starting price: about $16,195.
Shop Serg Supply · Best for a more structured build where you plan to handle the remaining furniture and systems yourself.
7. Freeway Camper Kit
Model-specific and some more universal kits for sleeping, storage, and kitchen setups.
Reported entry prices start around $1,250 for simpler kits.
Removable camping modules designed to preserve a vehicle's everyday usefulness.
Shop Vanpackers · Best for minivans and compact vehicles rather than a full-time, built-out cargo van.
Prices are approximate reported starting prices, not quotes. Check current availability, shipping, included components, and exact vehicle compatibility directly with each seller. Company websites are linked above; comparison details are based on published kit roundups.
2. A couple more worth checking
RoadLoft — roadloft.com. Removable bed and kitchen kits for selected minivans and compact vehicles, with some larger-van options.
Timber Van Kits — also sells individual cabinets and bed components, so you don't have to purchase a complete kit.
3. Which type of kit should you choose?
If your goal is…
Start with…
A mostly coordinated DIY interior
VanLab
A full-size van with custom layout flexibility
Adventure Wagon
Buying cabinets and components separately
Timber Van Kits
Keeping the van removable and versatile
Happier Camper or RoadLoft
Spending less on a basic camping setup
Freeway Camper Kit
One important detail: a conversion kit usually doesn't include everything. Electrical systems, batteries, solar panels, insulation, heating, plumbing, and installation may cost extra, depending on the package.
Let me narrow this down for your van
The single most useful detail is: what van are you planning to convert?
Vantopia Van : Great option if you want a clean aesthetic combining Baltic birch and bamboo surfaces. They supply complete interior kits—from beds and cabinetry to pre-wired electrical systems leveraging EcoFlow portable power stations—tailored for high-roof Sprinters, Transits, and ProMasters.[](https://www.vantopiavans.com/)
Camp N Car : Excellent if you want completely removable, modular wooden boxes rather than a permanent build-out. Their slide-out bed/kitchen setups can be popped in or out of your van in 10 minutes, meaning your van can still double as a daily driver or utility hauling vehicle during the week.
Choosing the Right Approach
If you want zero assembly headaches and a system that goes in during an afternoon, look at Wayfarer.
If you want furniture-grade aesthetics and are comfortable putting flat-pack boxes together with a drill, look at VanLab.
If you want heavy-duty, modular utility with integrated power and track systems, look at Titan.
To help narrow down which kit fits your project, tell me:
What make, model, and year is your van (and is it high-roof)?
Do you need an integrated electrical/solar system , or just the furniture and bed?
Yes, there are several companies that specialize in ready-made, modular, or flat-pack conversion kits designed to turn cargo vans, minivans, and pickup trucks into fully functioning camping setups. These kits allow you to bypass the intense labor of custom woodworking and wiring while avoiding the high cost of a fully custom professional build.
Popular options and styles of ready-made van conversion kits include:
TNTvans : Specializes in lightweight, modular DIY interior packages tailored for popular platforms like the Ford Transit Camper Van Conversion Kit that install easily and can often be removed.
RiverLeaf Camper : Known for compact, self-contained conversion solutions like the Yellowstone Camper Conversion Box , which fits smaller footprints like minivans and full-size vans for a quick, budget-friendly setup.
Caravan Woods : Provides pre-assembled, heavy-duty packages like the Sprinter 144" High Roof Conversion Van Kit that roll right into the van and include integrated beds, kitchenettes, flooring, and optional electrical power stations.
If you'd like to narrow down your options, tell me:
What make and model of van you have (or are looking to buy)
Whether you want a full interior (walls, bed, kitchen) or just a removable sleep/kitchen module
I can help point you toward the best specific brands and budget tiers for your project.
Yes. There’s a surprisingly large market for ready-made camper-van conversion kits, ranging from a simple removable bed/storage platform to a nearly complete van interior.
Here are some of the more interesting options I found:
Caravan Woods — Probably the closest thing to a turnkey drop-in room. Their kits arrive largely assembled, with bed, kitchen, storage, wiring and lighting, and are designed to slide into a Sprinter, Transit or ProMaster. Current kits start around $12,999.
VanLab — More of a traditional DIY conversion kit: bed, kitchen, flooring, bench, table and cabinets, with optional insulation, electrical and paneling. They also offer installation in California.
Vanpackers — Focuses on removable, no-drill systems, including cargo-van, minivan and SUV kits. Their cargo-van kit currently starts around $4,795, while simpler sleeping platforms cost considerably less.
Serg Supply — California-based company offering more substantial DIY conversion systems for Sprinter, Transit and ProMaster, including cabinetry, foundation systems and professional installation.
Infinity Vans — Offers flat-pack modular interiors and complete build kits for Sprinters and Transits. Their approach is more like a comprehensive DIY interior than a simple camping box.
TNT Vans — Has relatively inexpensive vehicle-specific furniture packages combining bed + kitchen + storage for Sprinter, Transit and ProMaster vans.
There are basically 4 levels
Type
Rough cost
DIY effort
Bed/storage platform
$700–$2,000
Very low
Removable camper module
$2,000–$6,000
Low
Complete furniture kit
$5,000–$16,000
Moderate
Nearly complete conversion
$13,000–$30,000+
Low–moderate
A recent 2026 comparison breaks the market down similarly: removable modules, flat-pack furniture, and foundation systems, with prices ranging from under $1,000 to well over $15,000.
The really interesting part: you don't necessarily have to permanently convert the van. Companies like Vanpackers and Caravan Woods offer systems that can be installed/removed relatively quickly, which is attractive if you want the van to remain useful as a normal cargo vehicle.
If you tell me what van you have (or are considering)—e.g. Sprinter, Ford Transit, ProMaster, Transit Connect, minivan—and roughly your budget, I can narrow this down to the best 5–10 kits that actually fit it.
