Less guessing. More useful numbers.
See how geometry affects grout volume. Start with your tile dimensions and confirm the order quantity against the exact product’s coverage.
Optional mixed-material mass
Enter product mixed density to estimate
Illustrative example: 10 m², 300 × 300 mm tile, 3 mm joints, 8 mm fill and 10% allowance.
A planning model for repeated rectangular tiles. This is not a container count or a purchasing guarantee.
What this actually calculates.
Think of one tile plus its share of the joints as a repeating rectangle. Subtract the tile’s area from that repeating module to estimate the fraction occupied by grout. Multiplying that fraction by the project area and filled depth gives the installed volume.
L and W are the face dimensions of a tile. J is the specified joint width. One square metre multiplied by one millimetre of depth is one litre, which is why the units work. The square-foot conversion uses 0.09290304 m² per ft².
Why the order quantity can differ
The model assumes a large, uniform repeating field. Perimeter joints, borders, irregular edges, rounded mosaics, mixed formats, changes of depth, lodged mortar and material left on tools can change actual use. Designed movement joints may use another material. The editable 10% allowance is a scenario, not a universal recommendation.
Litres are not kilograms of dry powder
A product’s mixed density can estimate the mass of mixed material. It does not tell you the dry powder weight after accounting for added water or separate components. Use the manufacturer’s stated coverage or installed yield per container to choose quantities, and confirm with the installer.
Compare with the manufacturer’s product coverage guidance, then use the quote checklist to record the selected material and scope.
Good work starts with
a clear picture.
Turn what you have noticed into a useful project brief. Then ask HAUSE to review the available next step.