Grout and thinset coverage by tile size & trowel
Typical industry planning values. These are typical planning values — confirm against the manufacturer’s install instructions and your product’s spec sheet.
Grout use depends on the tile size and joint width; thinset use depends on the trowel notch. The tables below are labeled planning values — smaller tiles with wider joints take more grout, and a bigger notch (for large-format tile) covers fewer sq ft per bag. Coverage varies by brand — confirm on the bag. Use them with the grout calculator and the thinset coverage calculator.
Grout coverage (lb per sq ft)
| Tile size & joint | Grout |
|---|---|
| 12 × 12 tile, 1/4" joint | 0.10 lb/sq ft |
| 12 × 24 tile, 1/8" joint | 0.06 lb/sq ft |
| 24 × 24 tile, 1/16" joint | 0.03 lb/sq ft |
Thinset coverage (sq ft per 50-lb bag)
| Trowel notch | Coverage |
|---|---|
| 1/4" × 1/4" square notch | 45 sq ft/bag |
| 1/2" notch (large-format) | 27 sq ft/bag |
Labeled planning values. Grout and thinset coverage vary by brand, tile and technique — always confirm on the bag.