Construction tools

Exact, repeatable construction math and the posted equipment rental rates Donnie’s estimator runs on — free, no account needed.

Every calculator

Each has its own page with the exact formula, the defaults it uses, and common questions.

Square footage calculator →Perimeter calculator →Wall area calculator →Concrete slab calculator (cubic yards) →Roof area calculator →Wall stud calculator →Drywall sheet calculator →Concrete footing calculator →Gravel / fill / excavation calculator →Roofing squares calculator →Shingle bundle calculator →Paint calculator →Tile calculator →Floor tile calculator (room dimensions) →Slab takeoff calculator →Cinder block (CMU) calculator →Brick calculator →Paver calculator →Roofing takeoff calculator →Stair calculator (risers & treads) →Square feet → square yards →Linear feet → yards →Cubic feet → cubic yards →

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Equipment rental rates

The posted rate sheet Donnie’s estimator grounds equipment cost on. Hourly = short-term, weekly = 7-day.

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