Construction & DIY Calculators

4 free, peer-reviewed construction & diy calculators

Material estimates, framing, concrete, paint coverage, grading. Built from the same code tables contractors keep in their trucks.

Concrete1

Concrete CalculatorCalculate concrete volume in cubic yards or cubic meters for any slab, footing, or column

Interior1

Paint Coverage CalculatorHow many gallons of paint a room needs

Roofing1

Roof Pitch CalculatorConvert between rise/run, pitch ratio, degrees, and percentage

Tile1

Tile CalculatorCalculate tiles, square footage, and grout for any flooring or wall project

Frequently asked questions

Do you include waste factors?

Yes — each calculator shows the base quantity and the 'order' quantity with a default waste factor you can override. Default waste factors come from NAHB guidance.