True-scale layout
Furniture, beds, walls, doors and windows use real dimensions so you can judge clearances and headroom before committing to a layout.
Framing-first view
Start with piers, beams, flush-hung floor joists and the shell. Sheathing, roofing and finishes appear later in the build flow.
Loft fit checks
Compare full, half and quarter loft concepts and see a warning when sleeping space or access needs more room.
Planning tool, not sealed construction documents. A local qualified professional must verify loads, spans, connections, foundations, life safety and permit requirements.