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Tile Layout and Box Estimator
Count tiles in an aligned rectangular grid with edge cuts, grout and whole boxes.
Room length (m), Room width (m), Tile length (m), Tile width (m), Grout gap (mm), Tile orientation, Spare pieces (%), Pieces per box, Cost per box
JSON
Browser only
Runs locally in your browser. Your files, pasted content and generated output are not uploaded. Reset clears this tool’s working data.
This tool needs JavaScript. If it does not load, refresh the page and try again.
How to use this tool
- Enter the labelled values and use the displayed units.
- Choose Calculate result and inspect the full report, assumptions and undefined/no-solution status.
- Choose Download result to save the complete JSON. Reset clears results and restores the example controls.
Examples
Room length (m): 4
Room width (m): 3
Tile length (m): 0.6
Tile width (m): 0.3
Grout gap (mm): 3
Tile orientation: normal
Spare pieces (%): 10
Pieces per box: 8
Cost per box: 20
Limitations
- Dimensions metres; grout mm; selected unrotated/rotated tile orientation. Count one whole blank for every intersecting grid cell; no reuse of edge cuts, stagger/diagonal pattern or optimal packing. Spare percentage and pieces per box are explicit.
- Scalar numeric inputs use explicit decimal syntax and IEEE-754 arithmetic; unless a tighter bound is stated, positive values are 1e-12–1e12 and nonnegative values 0–1e12. Derived inventory counts above 1 billion and nonfinite results are refused. Combined input limit400,000 UTF-8 bytes;complete JSON output limit4MiB. Numeric/code input controls allow128 characters. All processing stays in your browser.
- Whole purchasing/layout counts use exact entered decimal quantities for rational formulas; circular geometry remains floating-point.
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