Verify the inputs
Measure or document each input. If a value is only an estimate, record its source and test a conservative alternative.
Construction/ CALCULATOR
Centred tile grid and equal edge cuts
Calculate rows, columns and equal opposite cuts for one straight rectangular tile grid, including joints and perimeter gaps.
FROM ESTIMATE TO ACTION
Use the result, not just the number.
Keep the calculation traceable
Save the input link or copied result together with the date, units and assumptions. A number without its inputs cannot be checked later.
Confirm the decision
Compare the estimate with the related guide, current product data and requirements that apply at your location before buying or building.
Inputs to verify
- Measured rectangle length (m)
- One rectangle, not floor area. Check several positions; walls may not be parallel.
- Measured rectangle width (m)
- Swap the tile dimensions to compare permitted orientations.
- Actual tile length along the room (mm)
- Measured face dimension, not an assumed nominal module.
- Actual tile width across the room (mm)
- Use a representative tile from the intended batch.
- Joint between adjacent tiles (mm)
- Use the installation requirement; this model does not specify a suitable grout joint.
- Gap at each opposite boundary (mm)
- Same gap at each side, separate from internal joints; follow the system detail.