How to Estimate Grout for Tile Floors, Walls, and Backsplashes
Grout estimation depends on three things most people forget to check: tile size, joint width, and tile thickness. Larger tiles mean fewer joints and less grout per square foot; wider joints mean more. The formula converts these three dimensions into a volume-per-square-foot figure, then factors in the grout product's yield rate. Miscalculate and you're either making a mid-job run to the tile supply house or you've got a partial bag going stiff on the shelf.