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If your project already exists as an IFC file, you shouldn't have to re-trace every room by hand to get a material list. Autolay reads room boundaries directly from BIM.
Try it with our BIM demo file →An IFC file already contains IfcSpace and IfcWall entities with the real-world room boundary geometry the architect modeled. Instead of re-tracing a printed floor plan by hand — slow, and prone to measurement error — Autolay's web-ifc-based viewer loads the .ifc file client-side, lets you select the rooms (IfcSpace boundaries) you want flooring for, and hands those exact boundaries to the same layout engine used for hand-traced rooms.
The result: take-off time drops from re-measuring one room at a time to selecting rooms that already exist in the model, and accuracy matches the architectural model instead of a tape measure or a printed PDF's scale bar.
The moment a model is loaded, Autolay extracts the floors on its own: it scans the geometry, keeps the upward-facing surfaces and clusters them by height into storeys — ceilings and the undersides of slabs are discarded. In the demo office the three levels resolve automatically, and the detected floor is highlighted in green.
Because the extraction works on the geometry itself, it doesn't depend on the architect having tagged every room as a proper IfcSpace. Slide the crop box to the storey you want to floor — the highlight follows, and that floor arrives at the boundary step already isolated.
All numbers come from the free demo file itself: an IFC4 export from Autodesk Revit 2019, 9 MB. The demo button above loads exactly this file — check them for yourself.
Generic online flooring calculators expect you to type in room dimensions by hand. Autolay is one of the very few that reads a BIM model directly — genuinely useful once your project is past the sketch stage and already in Revit, ArchiCAD, or plain IFC.
