How do you build a camper van?

If you have decided against purchasing a completed van (either new or used) and prefer to build it yourself you shouldn’t try to reinvent the wheel. There are many resources (like this website and others) that provide inspiration, education, and products meant to help. You do not need to have any specific skills (you can learn as you go)–only curiosity and a good work ethic are required.

There is a proper order to a good build project. Executing steps out of order causes problems.

Purchasing a van before considering your specific needs or installing cabinets before considering the height of your bed are costly mistakes. Hours spend planning, designing, and preparing will save weeks of work and lots of money. Staying organized and thoughtful will keep you on time, on budget, and result in a van that meets your needs.

The process looks like this:

  1. Get Organized
  2. Specification Requirements
  3. Design a floor plan
  4. Purchase a van
  5. Create a workspace
  6. Order parts and materials (on schedule)
  7. Prep the van
  8. Cut holes and install vents & windows
  9. Floor
  10. Wiring
  11. Cabinets and Bed
  12. Insulation
  13. Bed System
  14. Heating and Ventilation
  15. Walls

Get Organized

Project Management involves setting requirements, estimating time and cost, sourcing materials, logistics, and scheduling. It helps you stay organized, on budget, and on time. Consider Stellar Overland is building a management tool to help.

Specification Requirements

Think about what problem you are trying to solve. Consider livability, typical trip length, cooking and food storage requirements, driving/parking characteristics, paved vs off-road use, seating & sleeping capacity, electric power needs, gear (bike/ski/surf) storage, and of course your budget.

The result of these considerations and more will determine the van chassis, body size, floor plan, electric system, appliances, etc. Spend a lot of time here. You do not want to build a van that doesn’t meet your needs.

Design a floor plan

How many passengers (seat belts and bed space) will you carry? Do you need space to “hang-out” inside after a wet ski day or just cots and gear storage? What storage requirements do you have? Look at common layouts for inspiration and note the required van size.

Consider your requirements and use social media for inspiration. A common design is a bed platform at the rear, a “garage” under the bed with utility (water/electric) cabinets on either side over the wheel wells (to better distribute the weight), and a galley towards the front. Swivel seats allow for more usability. You can choose very complicated designs that feel like an apartment or utilitarian builds that exult simplicity.

Purchase a van

The principle considerations are size (length, height, and weight rating), fuel type (diesel or gas), drive type (AWD, 4WD, 2WD), brand, cost, and availability.

Vans come in different sizes (length and height), carrying capacity (both volume and weight). Larger vans offer more living space but are more expensive, harder to maneuver, and perform worse off-road.

144 Sprinter High Roof

Generally their are four configurations consisting of high or low roof and short or long wheelbase (there are also super extended, super high roof, and some model years have 3 lengths).

170 Sprinter High Roof

Consider your desired layout. Drive a few vans to get a feel for their size and handling characteristics.

Most people will find themselves in the middle of the pack, with a high roof (that allows you to stand up inside) and a moderate length offering enough livability without impacting ease of driving. Certain use cases demand more extreme choices with super extended lengths or even small minivan builds.

Most people can make do with 2 wheel drive (even skiers, with proper tires and traction devices). AWD/4WD is a nice to have if you can afford it.

Everyone has a preferred brand its difficult to objectively recommend one over another. The Mercedes and Ford are the most popular platforms for a reason. Go drive them and see which you prefer.

Larger vans with more systems and options cost more and vice versa. Certain models may have longer waiting lists (4WD).

Create a workspace

You need a space to work in and tools to do the job. It doesn’t have to be much (a single car garage and a cheap workbench will do) but if you are trying to build in a parking lot or lack basic tools it will greatly extend your build time and frustration. Find space, acquire the basic tools, and get organized.

Purchase materials

You will be buying plywood, insulation, fasteners, sealants, flooring, appliances, electrical components, and more. You can do this all at once, or purchase them in line with your build schedule enabling you to look for deals and avoid storage costs.

You don’t need to build everything from scratch.

There are kits for cabinetry, electrical systems, wall panels, and much more. Deciding what to do yourself and what to outsource or buy as a kit involves considering the value of your time and your willingness to learn new skills. Generally speaking if you are building the van yourself you are already spending considerable time managing the project and should try to construct as much of it as possible on your own. The more you outsource individual systems the more sense it makes to simply buy a completed van. That said, certain installs like the diesel heater or electrical system can be scary and are easily outsourced.

Prep the Van

If you purchased a used van you should remove any existing shelving, flooring, or unwanted components. Clean the floor and walls removing contaminants like dust and oils. Patch any unwanted holes and treat any exposed metal with anti rust spray.

Cut Holes

Several components in the van require holes to be cut in the sheet metal. This may include the vent fan, windows, shore power, and water drain. This is a scary step but doing it now will make it easier to place wiring, insulation, and wall paneling.

A hole cut into a sprinter van for a window installation


The floor system should offer insulation, durability, and a level surface to rest cabinets, gear, and people. It generally consists of an insulation layer (polystyrene and/or Thinnsulate) , 1/2” marine plywood, and flooring (PVC, vinyl, or marine). The idea is to maximize durability and insulation, minimize weight and cost, while meeting your aesthetic tastes.


Your specification requirements details your required power system. You need to properly connect the components and lay wire for power distribution.

Even if you are using an all in one battery generator, wiring a DC fuse block to the unit will allow you to power your basic DC needs.

You should have a conceptual diagram that shows how all the components work together.

Battery Generator Van Electrical System


The principle material choices for insulation are Thinsulate, Minicell, Polystyrene foam board, expanding spray foam, and wool. There are many factors that affect heat transfer and ideal insulation method is a surprisingly technical discussion. Look for a guide from us soon.

Van Insulation

Cabinets and Bed

You can build cabinet and bed components out of wood, aluminum, steel, or fabric. You should consider cost, weight, and usability. For lower cabinets 8020 Extruded Aluminum is available with connectors that make it easy to assemble. This is a lightweight, strong, but expensive option. Wood is affordable but heavy. Fabric, being cheap and light, works great for upper clothing cabinets.

8020 Cabinet


Windows offer passive ventilation. Passenger vans already have them but cargo vans frequently require you to install your own (this seems scary but isn’t that hard). You will need to make a template for the hole, cut the metal, and fit the window using a sealant.

You will need more than windows to control airflow — not just for temperature control but to evacuate moist air (produced by your breath and cooking). This prevents condensation and mold growth. The absolute minimum is a 12V vent fan mounted through the roof. The installation process is similar to a window.

Vent Fan

Heating is most commonly accomplished by using a diesel/gas heater. The units require power for the fan, ignition, and controller. Installation involves cutting a hole in the fan floor, connecting a fuel line, and wiring power.

Diesel Air Heater

Espar and Webasto are the most popular brands, although there are cheaper versions available. Wood stoves create a nice vibe, offer dry heat, and are very cheap but take up more space and are less convenient to operate.

Installed air-conditioning is an expensive feature both for the unit itself (3,000-5,000 dollars) and also the larger house battery system required to power it (easily adding 5,000 – 10,000$ to your electrical system cost). Other options include less powerful portable units and evaporator coolers. Consider making do with just the ceiling vent fan and a lighter colored van that reflections more radiation.


You want storage (tanks), distribution (pump and water lines), filtration, and fixtures like a faucet and shower head. Some expensive builds have large capacity tanks, heated indoor showers, and grey water systems ($800-3,000). But you can add basic sink/shower functionality with a simple PVC storage pipe, gravity fed water line, and a drain hole ($100-300).


Some choose to install wall paneling earlier in the build process, before cabinetry (if you prefer walls behind your cabinets). We believe cabinets, beds, and other load bearing components should be installed directly to the steel van structure. For this reason, wall paneling is generally the last step to completing the major work for your build.

Zen Vans Wall System

Congrats, your done!

Not really though.