Allowance and product coverage
Separate net demand, coats, product coverage and contingency before rounding packages.
Read guideGuided project
Measure the floor, then calculate tiles and installation materials.
Follow quantities from floor area through tiles, adhesive and, where needed, grout.
Work from top to bottom. Optional steps can be skipped; alternatives are grouped into one decision.
Step 1
Set the area to be covered and any purchase allowance.
Use Room area calculator→Step 2
Convert floor area and tile size into tiles and whole boxes.
Use Tile calculator→Step 3
Use chosen product and trowel consumption for an adhesive quantity.
Use Tile adhesive calculator→Optional
Add grout when its joint and product data are known.
Use Grout calculator→Optional
Use the quantity from your chosen calculator and the supplier's package price.
Use Material purchase cost→Separate net demand, coats, product coverage and contingency before rounding packages.
Read guide →Calculate whole pieces, packs, surplus and cost with one clear purchasing unit.
Read guide →