# Assumptions — Family house

- Reference project generated by IFCWise to show the output format; not a real building.
- Source shown as: Hand sketch with dimensions.
- Storey height 3.0 m including a 0.2 m floor slab.
- Exterior walls 300 mm, interior walls 120 mm (core and party walls 250 mm).
- Doors 900 × 2100 mm and windows 1200 × 1200 mm unless drawn otherwise; sills 900 mm.
- Flat roof; roof build-up, structure and MEP are not modelled (LOD 100–200).