Construction
Flooring Calculator
Estimate tiles, boxes, adhesive (thin-set) and grout for any space.
Room data
Auto recalculation
m²
Tip. Always buy 1 extra box as reserve. Keeping pieces from the same lot avoids color variation.
Result
Boxes
15
58 pieces
Area with waste
21.00
m² · base 20.00 m²
Adhesive (thin-set)
5
20 kg bags (84.0 kg)
Grout
10.50
kg for 3 mm joint
Frequently Asked Questions
Cuts at edges, corner trims and breakage cause waste. For straight layout use 5%, diagonal 10%, special patterns 15%.
Market standards: 30×30 → 12 pcs, 45×45 → 6, 60×60 → 4, 90×90 → 2, 120×120 → 2, 20×120 → 5. Check the manufacturer and override if needed.
Practical coefficient of 4 kg/m² for AC-I and AC-II adhesives on medium ceramic tiles. 20 kg bags.
About 0.5 kg/m² for a 3 mm joint on medium tiles. Increases linearly with the joint.