About this calculator
Bags of cement-based tile adhesive by area and trowel size.
How it’s calculated
Consumption per m²: about 3 kg with a 6 mm notch, 4.5 kg with 8 mm, 5.5 kg with 10 mm and 6.5 kg with 12 mm.
Worked example
With these inputs:
- Measure by
- Length × width
- Length
- 4.5 m
- Width
- 3.6 m
- Trowel notch
- 6 mm notch
- Back-butter tiles (+30%)
- No
- Waste allowance
- 10%
the result is:
- Adhesive needed
- 53 kg
Tips from the trade
- Choose the notch for the tile size: bigger tiles need bigger notches.
- Lift a tile now and then to check for full coverage.
Results are estimates for planning and pricing. Check quantities against your drawings, the manufacturer’s data and the Building Regulations before ordering.