All Construction Calculators

Calculate exactly how much concrete you need for a slab — cubic yards, bags of pre-mix, and estimated cost.

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Calculate concrete volume for strip footings or pad footings, including rebar requirements.

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Calculate concrete needed for round or square columns and piers. Includes Sonotube form sizing.

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Calculate the volume of concrete needed for poured-in-place concrete steps or a staircase.

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Calculate concrete volume, cost, and number of ready-mix trucks needed for a concrete driveway.

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Calculate the number of deck footings, footing diameter, and concrete needed for a freestanding deck.

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Calculate board feet of lumber from thickness, width, and length. Get linear feet and cost estimates.

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Calculate the number of studs, plates, and headers needed to frame a wall based on length and stud spacing.

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Calculate all the lumber needed to build a deck: decking boards, joists, beams, posts, and hardware.

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Calculate the number of fence posts, rails, pickets, and concrete bags needed for any fence project.

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Calculate the number of shingle squares, bundles, ridge cap, and roofing nails needed for your roof.

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Calculate roof pitch, slope angle in degrees, and slope percentage from rise and run measurements.

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Calculate the number of metal roofing panels, fasteners, and trim needed for a standing seam or corrugated metal roof.

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Calculate how many rolls of roofing felt or synthetic underlayment you need, accounting for proper overlap.

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Calculate square footage, number of boxes, and cost for hardwood flooring installation.

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Calculate the number of tiles, bags of grout, thinset mortar, and tile spacers needed for a tile project.

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Calculate square yards of carpet and padding needed for a room or entire house installation.

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Calculate the number of laminate flooring boxes, underlayment rolls, and transition strips needed.

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Calculate how many gallons of paint and primer you need for any room — walls, ceiling, and trim.

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Calculate gallons of exterior paint needed for your house — siding, trim, and doors.

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Calculate gallons of paint or stain needed for any wood fence. Accounts for both sides and rail coverage.

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Calculate studs, plates, and headers needed to frame any wall. Works for 2×4 and 2×6 construction.

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Calculate riser height, tread count, stringer length, and lumber needed for any staircase.

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Calculate rafter length, board count, and lumber needed for a gable roof based on span and pitch.

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Find the maximum allowable floor joist span for common lumber sizes and species based on AWC span tables.

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Determine the correct header size for window and door openings based on span and load above.

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Calculate OSB or plywood subfloor panels, adhesive, and screws needed for any floor area.

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Calculate posts, rails, pickets, and concrete needed for a wood privacy fence. Includes gate posts.

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Calculate deck boards, screws, and material cost for any size deck. Accounts for board width, gap spacing, and 10% waste.

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Find the correct wire gauge (AWG) for any circuit based on amperage, run length, and voltage. Checks NEC ampacity and 3% voltage drop.

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Calculate conduit fill percentage to ensure NEC compliance. Checks 40% fill limit for 3+ conductors.

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Find the right water heater size (gallons or BTU) for your household based on peak hour demand.

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Find the correct pipe diameter for water supply lines based on flow rate (GPM) and velocity limits.

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Calculate the required drop for drain pipes to achieve proper slope. Ensures code-compliant gravity drainage.

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Calculate cubic yards, bags, and cost of mulch for any landscape bed. Works for 2 cu ft and 3 cu ft bags.

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Calculate cubic yards, tons, and bags of gravel or crushed stone for driveways, paths, and drainage.

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Calculate cubic yards and bags of topsoil needed to fill a lawn, garden bed, or raised planter.

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Calculate square yards, pallets, and cost of sod for a new lawn or lawn renovation.

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Calculate bricks or CMU blocks, mortar bags, and cost for walls, columns, and raised planters.

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Calculate how many pavers you need for a patio, walkway, or driveway — plus base gravel, sand, and cost.

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Calculate the number of retaining wall blocks, base gravel, and drainage stone needed for any wall.

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Calculate bags of stucco, base coat, and finish coat needed for any wall or exterior area.

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Calculate the correct BTU and tonnage for an air conditioner or heat pump for any room or house.

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Find the right R-value for your climate zone and calculate batts, rolls, or bags of insulation needed.

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Calculate sheets of drywall, joint compound, tape, and total cost for any room. Includes 10% waste factor.

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Calculate the volume of any swimming pool in gallons and cubic feet. Works for rectangular, oval, round, and kidney shapes.

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Calculate how many solar panels you need to offset your electricity bill, system size in kW, and estimated savings.

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Calculate the number of spray foam kits or board feet of foam needed for any insulation area.

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