🥣 Thinset Calculator
Tiled area and trowel
Length
Width
…or area directly
Tile size
(sets the usual notch)
Mosaics and small tile — to 4 in
Tile to 12 in
Large tile — 12 to 16 in
Large format — 16 in and up
Trowel notch
(coverage = one 50-lb bag, from the manufacturers' charts)
3/16 in V-notch — about 95 sq ft per bag
1/4 × 1/4 in square — about 80 sq ft per bag
1/4 × 3/8 in square — about 60 sq ft per bag
1/2 × 1/2 in square — about 40 sq ft per bag
Waste allowance (%)
(extra for cuts, spills and uneven ground — 10% is the usual rule)
Calculate thinset
Calculator by
CalcCoverage
— free DIY & home-improvement calculators