Material Calculators for Home Improvement
Choose a material and enter your measurements. Your estimate updates instantly.
Eight calculators.
One clear estimate.
Laminate flooring calculator
How we calculate
Floor area × (1 + waste allowance ÷ 100) ÷ coverage per box. Round up to the next whole box.
Before you buy
For a rectangular room. The default 10% allowance is an example; adjust it for the layout, pattern, and manufacturer instructions. Underlayment, trim, and baseboards are not included.
Choose a calculator for your project
- Laminate flooring calculator
Use the coverage printed on the box. The waste allowance is adjustable.
- Tile calculator
Enter the size of a floor or one wall. Use the coverage printed on the box.
- Wall paint calculator
Walls only; the ceiling is excluded. Gallons are U.S. liquid gallons.
- Wallpaper roll calculator
Enter the actual dimensions of one physical roll, even if it is sold as a double roll. Openings are not subtracted.
- Plaster calculator
Reference thickness: 1 inch for U.S. units, 10 mm for metric. Starting rates are examples; use your product data.
- Cement for concrete calculator
Calculates cement only, not bags of premixed concrete. The starting cement content is an example, not a mix design.
- Floor leveling mix calculator
Reference thickness: 1 inch for U.S. units, 10 mm for metric. Enter the rate for your dry floor mix.
- Lumber volume and coverage calculator
Enter actual dimensions, not nominal lumber sizes. Coverage excludes gaps and cutting waste.
Measurement and product references
Estimates use geometry and the product data you enter. Starting values are examples. Check your product label, coverage, and installation instructions before purchasing.