How to Add Stairs to a Floor Plan: Rise, Tread, Width + the 3 Shapes Explained | Room Sketch 3D
The complete staircase tutorial for Room Sketch 3D — from the six terms that define a real staircase (rise, riser, tread, width, length, direction) to the three shapes (straight, L-shaped left or right, U-shaped switchback). Drop it in from the Room Structure panel, set the dimensions in the inspector, position it on the plan, and walk up it in the 3D view to check head clearance and the approach.
4 minUpdated 2026-05-13
Read the full step-by-step guideWhat this video covers
- 1Drop a staircase in from the Room Structure panel
- 2Learn the six terms (the anatomy of a staircase)
- 3Pick the shape — Straight, L (left or right), or U
- 4Set the dimensions in the inspector
- 5Position it on the plan
- 6Walk up it in 3D
Prefer to read along? See the full written walkthrough with screenshots.
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