Tile Layout Calculator
Calculate exact tile quantities for any room size and pattern. Get totals for tiles needed, boxes to order, wastage allowance, and cut tile estimates instantly.
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Frequently Asked Questions
Common questions about tile layout.
How to Calculate
Enter your room dimensions (length and width), tile size, and desired grout line width. Select your layout pattern — straight is simplest while diagonal and herringbone add visual interest but increase waste. The calculator uses the formula: **Tiles Needed = (Room Area ÷ Tile Area) × (1 + Wastage %)**, then accounts for grout spacing and pattern complexity. Results show total tiles, boxes to order, and estimated cuts so you can budget accurately and avoid mid-project supply runs.
Formula & Method
Tiles Needed = ⌈(Length × Width) ÷ (Tile Length × Tile Width)⌉ × (1 + Wastage%) where Wastage% = 0.10 for straight, 0.15 for diagonal/herringbone patterns. Boxes Required = ⌈Tiles Needed ÷ Tiles per Box⌉. Grout adjustment reduces effective tile size by grout width on each edge.
Sources & References
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