The calculation, explained.
Calculate whole rows and columns from surface dimensions, piece dimensions and joint gap. Multiply for base pieces, add the selected allowance and round up again. This is a rectangular layout model.
Review the example assumptions and results
- Surface length
- 120 in
- Surface width
- 120 in
- Tile length
- 12 in
- Tile width
- 12 in
- Grout gap
- 0 in
- Extra material
- 10 %
- Base pieces
- 100
- Pieces with waste
- 110
How this tool works
Adjust the labeled inputs to see a new calculation. Units and assumptions are shown beside each field. Printed and copied results use the same calculation.
This is a planning estimate, not a structural design, permit document or binding quote. Check product specifications and actual site measurements.
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