Design the interior around real daily movement

A good layout is one that works while cooking, sleeping, changing clothes and dealing with wet weather. Begin by measuring people and routines as well as the van. Check usable bed length with the actual mattress thickness, kitchen standing space, door access and somewhere to put shoes and coats. Photographs taken with every cupboard shut do not show how much space an ordinary evening requires.

Decide which functions must work at the same time. A fixed bed saves daily conversion effort but occupies permanent floor area. A convertible seating area can create more daytime space while requiring somewhere to put bedding and a repeatable setup routine. Neither is automatically better. Make a full-size taped or cardboard mock-up and test reaching storage, opening doors and passing another person before committing to cabinetry.

Place heavy equipment and water with the loaded vehicle in mind, and keep service access visible on the drawing. Electrical equipment needs cooling and accessible connections; plumbing needs inspection and draining; a heater needs its prescribed clearances and routes. Do not let a visually tidy cupboard force an unsafe or unserviceable system arrangement. Record fixing locations before lining the shell, and design storage to retain its contents during travel.

Start here: choose a sleeping and seating concept, locate the kitchen and major equipment, then design storage around the remaining space. Check passenger seating requirements independently from campsite seating comfort. Include the weight of materials, furniture, appliances, water and ordinary luggage in the plan, and leave room for changes. The detailed articles below cover bed, kitchen, bathroom and cabinet decisions. Use the conversion planning hub to put those choices into the build sequence and the budget tool to compare alternatives. A small trial build or mock-up is often more informative than another round of attractive floor plans.