How many 18×18 tiles for a 20×20 room?

Tiling a 20 ft × 20 ft floor with 18×18 inch tiles (10% waste included) takes the number below.

Tiles needed

196tiles

400

sq ft floor

2.25

sq ft / tile

10%

waste added

Different tile size, pattern, or layout? Use the full tile calculator — it includes a visual layout planner with diagonal and herringbone patterns.