Calculate how many tiles you need, plus thin-set mortar and grout. Supports common sizes, custom tiles, and multiple layout patterns.
| Pattern | Waste % | Notes |
|---|---|---|
| Straight / Grid | 10% | Simplest layout, least waste |
| Brick / Offset | 12% | Staggered rows, moderate waste |
| Diagonal (45°) | 15% | More cuts at walls |
| Herringbone | 18% | Most cuts, highest waste |
Divide your total floor area (length × width) by the area of one tile (including grout lines). For example, a 120 sq ft room with 12×12 inch tiles needs about 120 tiles before waste. Add 10-18% for waste depending on your layout pattern — diagonal and herringbone patterns waste more than straight layouts.
A 50-pound bag of thin-set mortar covers approximately 50 square feet using a 1/4-inch square-notch trowel. Larger tiles require larger trowel notches and more mortar — a 1/2-inch trowel for 24×24 tiles uses roughly twice as much thin-set.
Buy 10% extra for straight/grid layouts, 12% for brick/offset patterns, 15% for diagonal layouts, and 18% for herringbone. Also keep 2-3 extra tiles for future repairs — matching discontinued tiles is nearly impossible.
Calculate gallons of paint needed by room dimensions or area. Accounts for doors, windows, coats, surface type, and primer.
Calculate sheets, joint compound, tape, and screws for any room. Accounts for doors, windows, ceiling, and waste.
Estimate material waste for any project with industry-standard waste factors for common construction materials.
Contractor Co-Pilot handles materials, labor, and waste for every flooring job.
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