How to use
- Enter one or more tile areas.
- Enter tile dimensions and choose a layout pattern.
- Use tiles per box or box coverage to estimate cartons.
Input guide
- Tile dimensions are in inches for US product labels.
- Diagonal and herringbone patterns add extra waste automatically.
- Use either tiles per box or box coverage, depending on what the label provides.
Common mistakes
- Forgetting pattern waste for diagonal layouts.
- Using nominal tile sizes without checking actual dimensions.
- Treating boxes as divisible instead of rounding up.
Assumptions and limitations
- No grout, mortar, trim, niches, stairs, curved areas, or exact layout optimization is included.
- Pattern allowance is a planning default, not a cut plan.
- Optional price is user-entered only.
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Formula
- Base area = sum of each area length x width.
- Effective waste = base waste plus pattern allowance.
- Area to tile = base area x (1 + effective waste / 100).
- Tile count = area to tile / one tile area, rounded up.
Example
A 100 sq ft floor with 10% waste and 12 in x 12 in tile needs 110 one-square-foot tiles before box rounding.
FAQ
Does this calculate grout bags?
No. The MVP estimates tile quantities and boxes only; grout depends on joint width, tile thickness, and product coverage.
Why do patterns change waste?
Diagonal and herringbone layouts usually create more cuts and offcuts, so the calculator adds a planning allowance.