Click any room to cycle its label. Watch edges (walls) between rooms update their fire ratings automatically — the wall edges now color themselves based on rating. Click a wall to see its rating rule. Hover to highlight.
Floor plan · Click rooms to relabel—
Rating lookup table
Unit ↔ Unit1 HR
Unit ↔ Corridor20 MIN
Unit ↔ Stair2 HR
Corridor ↔ Stair2 HR
Unit ↔ Mech1 HR
Corridor ↔ Mech1 HR
Same type0 (NR)
Wall rating legend
2 HR (6px)
1 HR (4px)
20 MIN (3px)
NR (1px)
Summary
Total edges
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2-HR walls
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1-HR walls
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20-MIN walls
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NR walls
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The fire rating is a property of the edge — the boundary between two labeled cells. Relabel a cell, edge ratings update. The wall object was never needed.