Spaziou tools · Layout
Turn interior dimensions into usable space.
Enter your model's actual interior dimensions to compare floor area, gross volume and approximate space remaining after furniture and equipment.
Use interior dimensions, not exterior length.
Lining, insulation, curved walls, wheel arches, seats and pillars reduce available space. For furniture or a bed, measure your finished vehicle at several points and treat this tool as a geometric guide.
Next, check layout and weight.
Explore our guides by model and check the result with the payload calculator.
Method · Example · Decisions
From interior measurements to a workable layout
Geometry helps compare scenarios. It does not fully represent the vehicle body's actual shape or clear passages between furniture.
Formula used by this tool
Gross floor area = length × width. Gross volume = floor area × height. Free volume and equivalent free area = gross value × (1 − occupancy). Inputs in cm are converted to metres.
Reproducible example
An interior measuring 300 × 180 × 190 cm gives 5.40 m² floor area and 10.26 m³ gross volume. At 30% occupancy, the model leaves 7.18 m³ and an equivalent 3.78 m². That percentage does not physically position furniture.
Measure at the right location
Measure width at mattress height, between wheel arches and where furniture will sit. Allow for lining, insulation, pillars and door openings. Exterior dimensions and an L2H2 label do not replace measurements of your own vehicle.
Check access and passage space
Take the scenario into the layout planner. Open furniture doors virtually, allow for seats and check passages for cooking, entry and bathroom use. An equivalent free area does not prove that a continuous aisle remains.
Does the occupancy percentage calculate the weight?
No. Space and mass are different quantities: a small space can hold a heavy battery or tank. After positioning components, enter their masses and check payload and axle-load distribution.