10 practical tools

Construction calculators

Plan concrete, masonry, wall finishes and roof coverings from your project dimensions.

The calculator collection

A tool for every part of the project.

10 calculators

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Build a material list one component at a time

A slab project may need separate estimates for concrete, reinforcement and aggregate. Enter thickness, spacing and other dimensions from your project specification. A quantity estimate does not choose a structural design.

For a room, first count drywall sheets, then calculate paint coverage using the product’s coat count and coverage rate. For walls, choose brick or concrete block and subtract openings once.

Volume, pieces and finished surfaces use different units

Ready-mix concrete is usually ordered by volume, bagged concrete by labeled mixed yield, and roofing by surface area and bundle coverage. Check whether a quote uses US customary or metric units before comparing totals.