Exterior Wall Placement: Outside, Center, Inside — RoomSketch3D
How Exterior Wall Placement works in RoomSketch3D and how it changes your Gross and Usable area. On a 16×12 rectangle, toggle Outside, Center, and Inside and watch the dimension chains and areas update (224/192 → 207/177 → 192/163).
1 minUpdated 2026-10-11
Read the full step-by-step guideWhat this video covers
- 1First: how the plan measures
- 2Gross Area vs Usable Area
- 3Outside mode: the outline is the inside
- 4Center mode: walls straddle the line
- 5Inside mode: the outline is the outside
- 6Putting it together
- 7After the walls exist: typing a wall's length
Prefer to read along? See the full written walkthrough with screenshots.
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