What is counted
For the French Loi Carrez, the area is measured inside the walls, excluding walls, partitions, stairs, ducts and window recesses, and excluding parts under 1.80 m of height. Other countries use other rules.
Guide · 5 min read
Floor area: what a scan can do.
Floor area looks simple until there is a slope, a recess or a staircase. Here is how it is measured, and where a LiDAR scan helps.
Why slopes change everything
Under a roof, part of the floor is too low to count. Knowing where the ceiling crosses 1.80 m is what makes the figure right, which is why ArchiScan 3D records sloping ceilings.
Where the scan fits
ArchiScan 3D gives an indicative figure to prepare a file, check a listing or estimate a project. An official measurement remains the job of a professional who takes responsibility for it.
Keep exploring
Heights and areas
Heights and areas, measured on site.
ArchiScan 3D records ceiling heights room by room, handles sloping ceilings and gives an indicative floor area, including an indicative French Loi Carrez figure.
Read →For estate agentsA plan for every listing, made during the viewing.
Make a clear floor plan for every listing during the viewing, export it as PDF or SVG, and share the 3D model by private link.
Read →For property inspectorsPlan, heights and photos, in a single pass.
Measure rooms, record ceiling heights, place photos and notes on the plan and get an indicative floor area in one pass. Less double entry for inspections.
Read →Your next survey will take ten minutes.
ArchiScan 3D is in beta on TestFlight. Ask for access.