🧱 Construction & Trades Calculators
Material take-offs for the jobs that get quoted by the square foot and delivered by the cubic yard — concrete, roofing, drywall, flooring, tile, fencing, gravel and paint. Every calculator states the waste allowance it applies and shows the raw quantity before it, so you can price a job against your own supplier's units instead of a hidden rule of thumb.
Solve real power, voltage, or current for DC, single-phase AC, and balanced three-phase AC scenarios.
Open calculator →Estimate drywall surface, layer coverage, waste, and whole sheets using editable panel dimensions.
Open calculator →Estimate posts, equal intervals, and horizontal rail length for one or more independent straight fence runs.
Open calculator →Calculate board-foot lumber volume from thickness, width, length, equal-piece count, units, and explicit waste.
Open calculator →Estimate flooring area and whole packages from room dimensions, exclusions, waste, and labeled box coverage.
Open calculator →Estimate simple gable roof surface, roofing squares, and whole bundles from plan dimensions, pitch, waste, and coverage.
Open calculator →Estimate whole tiles and boxes from rectangular surfaces, exclusions, waste, actual tile face dimensions, and box count.
Open calculator →Estimate rectangular gravel volume in cubic yards and metres, plus weight from an editable supplier density.
Open calculator →Estimate mulch volume for a rectangular bed and whole bags from the labeled package volume.
Open calculator →Estimate wall paint from equal wall dimensions, openings, coats, product coverage, reserve, and can size.
Open calculator →Calculate the total square footage of one or more equal rectangles with exact metric conversions.
Open calculator →Estimate rectangular slab volume, ready-mix allowance, and whole bags from package-specific yield.
Open calculator →Estimate appliance electricity use and cost from power, runtime, schedule, device count, and price per kWh.
Open calculator →