Van builds and layouts

This hub is for you if you're planning a DIY conversion and want to know what it will weigh, what it will cost and what a realistic layout looks like. It starts with the one calculation every build depends on, then lays out three sample builds at very different budgets so you can see where your plans fit.

Start with weight, not furniture

Before you buy lumber or batteries, work out how much your van can carry. The guide to van build weight and payload shows how to subtract your van's actual empty weight from the Gross Vehicle Weight Rating (GVWR) on the door-jamb label. What's left has to cover the entire conversion plus people, water, food and gear. Camper vans usually overload the rear axle before they hit the overall GVWR, so check each axle against its Gross Axle Weight Rating (GAWR) as well. The only way to know for sure is to weigh the van axle by axle on a certified scale, once before the build and again fully loaded. Heavier springs or airbags change how the van rides, not the ratings on the label.

Pick a build level

The three sample plans below are starting frameworks, not promises. Published builds on the same platforms vary widely, and the van itself is a separate cost in every case.

Sample build	Parts budget	Good for
Budget minivan camper	About $2,500	Weekend and road-trip camping in a van that still works as a family car
Sprinter under $15,000	About $13,500 with a 20% buffer	Long weekends and multi-week trips, with a modest electrical system and no indoor bathroom
Ford Transit high roof	About $18,500	A full-featured two-person build with standing room, a 200Ah lithium bank and 400W of solar

Minivan

A Toyota Sienna, Honda Odyssey or Dodge Grand Caravan can become a removable camper with a low platform, bins underneath, a portable power station and window covers. Measure the width between the wheel wells before you buy, and use the load limit on the Tire and Loading Information label rather than a brochure figure. Minivans are passenger vehicles, so keep anything you mount clear of the side curtain airbags along the roof rail.

Sprinter on a budget

Staying under $15,000 depends on doing the labor yourself, keeping the electrical system modest and buying used where it's safe to. The guide is clear about where not to cut corners: wire, fuses and safety equipment such as a CO alarm and fire extinguisher.

Transit high roof

The Transit plan works phase by phase over roughly 90 days, though published first builds have taken far longer and cost more. Its payload math is a useful template for any high-roof van.

A sensible order

1. Weigh the empty van and calculate payload and axle margins.
2. Choose a build level and set a budget with a buffer.
3. Plan the layout around bed, galley and where heavy items (batteries, water) sit relative to the rear axle.
4. Design the electrical and heating systems before you close up walls. The van electrical system guide and the diesel heater install guide cover those in detail.
5. Weigh the finished van fully loaded before your first long trip.

If you haven't chosen a van yet, read the ProMaster vs Transit vs Sprinter comparison first.