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How many 12" tiles for a 16×20 room?

Answer
352 tiles (36 boxes)
Room area with 10% waste: 352 sq ftTile size: 12"×12"10 tiles per box

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How We Calculated This

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

Area = 16 × 20 = 320 sq ft. With 10% waste = 352 sq ft. Each 12" tile = 1.00 sq ft. Tiles = 352.

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Calculated using verified formulas. Last updated March 2026.