🏗️ Construction and Home Calculators
20 free construction and home calculators. Square footage, concrete, gravel, stairs, fencing, drywall, roofing and pool volume.
- Square Footage CalculatorCalculate square footage for rectangles, circles, triangles and trapezoids. Results in square feet, square yards, square meters and acres.
- Concrete CalculatorCalculate concrete volume in cubic yards, cubic feet and cubic meters for slabs, footings and round columns, plus the number of 40, 60 and 80 lb bags.
- Concrete Block CalculatorWork out how many concrete blocks a wall needs from its length and height, with openings and a waste allowance.
- Gravel and Stone CalculatorCalculate how much gravel, crushed stone, pea gravel or river rock you need in cubic yards and tons from the area and depth.
- Sand CalculatorEstimate how much sand you need in cubic yards and tons for a sandbox, paver bed, play area or fill, based on area and depth.
- Topsoil and Soil CalculatorCalculate cubic yards and tons of topsoil, fill dirt, compost or mulch for lawns, raised beds and gardens from the area and depth.
- Asphalt CalculatorCalculate tons of hot mix asphalt for a driveway or parking area from length, width and thickness, with adjustable density.
- Stair CalculatorCalculate the number of steps, exact riser height, total run, stringer length and stair angle from the total rise.
- Fence CalculatorEstimate fence posts, sections, rails and pickets from the fence length, post spacing and picket size.
- Drywall CalculatorCalculate how many sheets of drywall or sheetrock a room needs from its dimensions, with doors, windows, ceiling and waste.
- Plywood CalculatorFind how many sheets of plywood or OSB cover a floor, wall or roof deck, based on the area, sheet size and waste allowance.
- Flooring and Carpet CalculatorCalculate flooring or carpet for a room in square feet and square yards, with waste and the number of boxes to buy.
- Roofing Shingle CalculatorCalculate roof area, roofing squares and bundles of shingles from the building footprint and roof pitch.
- Rafter Length CalculatorCalculate common rafter length, roof rise and angle from the building span, roof pitch, ridge thickness and overhang.
- Linear Feet CalculatorConvert square feet to linear feet for boards of any width, convert linear feet back to square feet, or total the linear feet of several pieces.
- Pool Volume CalculatorCalculate how many gallons or liters of water a rectangular, round or oval pool holds from its dimensions and depths.
- Pool Salt CalculatorCalculate how many pounds and bags of salt to add to a saltwater pool to reach a target salinity in ppm.
- Tank Volume CalculatorCalculate the capacity of a rectangular or cylindrical tank or aquarium in gallons and liters, with the weight of the water.
- Pipe Volume CalculatorCalculate the volume of water inside a pipe from its inner diameter and length, in gallons, liters and cubic feet.
- Metal Weight CalculatorCalculate the weight of steel, aluminum, copper and other metals as plate, round bar, square bar or tube from the dimensions.
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