How many 24" tiles for a 12×12 room?

40 tiles (4 boxes). Room area with 10% waste: 158 sq ft. Tile size: 24"×24". 10 tiles per box

Answer

40 tiles (4 boxes)

Room area with 10% waste: 158 sq ftTile size: 24"×24"10 tiles per box

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How We Calculated This

Tiles = ceil((L × W × 1.10) / tile area)

Area = 12 × 12 = 144 sq ft. With 10% waste = 158 sq ft. Each 24" tile = 4.00 sq ft. Tiles = 40.

Calculated using verified formulas. Last updated March 2026.