How It Works
Rows and columns are each rounded up, then multiplied. Extra tiles=ceiling(grid count×waste allowance). Boxes round up to full boxes.
Assumes butt-jointed nominal tile sizes, no grout-width correction or reuse of cut pieces. Diagonal layouts and patterns require a separate cutting plan.
Reference Sources
FAQs
How does this calculator work?
Rows and columns are each rounded up, then multiplied. Extra tiles=ceiling(grid count×waste allowance). Boxes round up to full boxes.
What assumptions should I check?
Assumes butt-jointed nominal tile sizes, no grout-width correction or reuse of cut pieces. Diagonal layouts and patterns require a separate cutting plan.