Construction Calculators
Estimate materials, measure areas and volumes, and plan building, flooring, roofing and landscaping projects.
40 calculators
- Asphalt CalculatorEstimate how many tons of hot mix asphalt you need for a driveway or parking area from length, width and compa
- Baluster Spacing CalculatorCalculate how many balusters or spindles a deck or stair railing needs to meet the 4-inch rule, and the exact
- Baseboard & Trim CalculatorCalculate linear feet of baseboard, crown or shoe molding for a room, subtracting doorways, and the number of
- Board and Batten Layout CalculatorLay out board and batten wall trim evenly: number of battens, exact gap and on-center spacing, plus a position
- Board Foot CalculatorCalculate board feet of lumber or hardwood from thickness, width, length and quantity, convert to cubic feet a
- Brick CalculatorCalculate how many bricks you need for a wall from its size, brick type and mortar joint width, plus bricks pe
- Carpet CalculatorEstimate how much carpet and pad to buy for a room in square yards, based on 12 or 15 ft roll widths, seams, t
- Concrete Block CalculatorEstimate how many concrete blocks (CMU) you need for a wall from its length and height, with courses, blocks p
- Concrete CalculatorEstimate how much concrete you need for a slab, footing, column or round pour in cubic yards, cubic meters and
- Cubic Feet CalculatorCalculate cubic feet for a box, room, cylinder or tank from dimensions in any unit, and convert to cubic yards
- Cubic Yard CalculatorCalculate cubic yards for soil, gravel, mulch or concrete from length, width and depth in any unit, for rectan
- Deck CalculatorEstimate decking boards, joists and screws for a rectangular deck from its size, joist spacing, board width an
- Drywall CalculatorCalculate how many sheets of drywall you need for a room’s walls and ceiling using 4×8, 4×10 or 4×12 sheets, p
- Feet and Inches CalculatorAdd, subtract, multiply and divide feet, inches and fractions. Get results in feet-inches, decimal feet, inche
- Fence CalculatorEstimate fence posts, rails, pickets and concrete for a wood privacy or picket fence from its length, post spa
- Flooring CalculatorEstimate the square footage and number of boxes of hardwood, laminate or vinyl plank flooring for a room, incl
- Gravel CalculatorEstimate how much gravel or crushed stone you need in cubic yards and tons for a driveway, path or patio base,
- Grout CalculatorEstimate how much tile grout you need in pounds and bags from tile size, tile thickness, joint width and the a
- Insulation CalculatorCalculate the insulation thickness and volume needed to reach a target R-value for an attic, wall or floor, fo
- Linear Feet CalculatorCalculate linear feet from a number of pieces and their length, or from an area and board width, and find the
- Lumber CalculatorLook up actual lumber dimensions for nominal sizes like 2×4 and 2×6, and get total linear feet, board feet, co
- Mulch CalculatorFind how much mulch you need for garden beds in cubic yards and 2 or 3 cubic foot bags from bed size and depth
- Paint CalculatorEstimate how many gallons of paint you need for a room’s walls and ceiling, subtracting doors and windows, for
- Paver CalculatorCalculate how many pavers you need for a patio, walkway or driveway, plus the gravel base and bedding sand, fr
- Rafter Length CalculatorCalculate common rafter length for a gable roof from building span, pitch, overhang and ridge board thickness,
- Rebar CalculatorCalculate rebar for a concrete slab grid: number of bars each way, total linear feet, stock bars with lap spli
- Retaining Wall CalculatorEstimate retaining wall blocks, cap units, drainage gravel and base gravel for a segmental block wall from wal
- Roof Pitch CalculatorConvert roof rise and run to pitch (x/12), angle in degrees, slope percent and pitch multiplier, or convert a
- Roofing CalculatorCalculate roof area, roofing squares and bundles of shingles from the house footprint, overhang and roof pitch
- Sand CalculatorCalculate how much sand you need in cubic yards, tons and 50 lb bags for paver bedding, a sandbox or backfill
- Scale CalculatorConvert real-world lengths to drawing or model size and back using architectural, engineering, metric and mode
- Siding CalculatorEstimate siding for a house in square feet, squares and panels from wall perimeter, height and gables, minus o
- Square Footage CalculatorCalculate square footage of a room, floor or lot for rectangles, circles and triangles, in any unit, plus tota
- Square Yards CalculatorConvert room dimensions to square yards for carpet, sod or fabric. Enter length and width in feet, inches or m
- Stair CalculatorCalculate the number of steps, riser height, tread depth, total run, stringer length and stair angle from the
- Stud CalculatorEstimate wall studs and plates for a framed wall from its length, stud spacing, corners and openings, with was
- Tile CalculatorCalculate how many tiles you need for a floor or wall from area, tile size and grout joint width, with waste a
- Topsoil CalculatorCalculate the topsoil needed for a lawn, garden bed or grading job in cubic yards, tons and bags, from area an
- Wallpaper CalculatorCalculate how many rolls of wallpaper you need using the strip method, with room size, wall height, roll dimen
- Wheelchair Ramp CalculatorCalculate wheelchair ramp length from the total rise using the ADA 1:12 slope or a gentler slope, with ramp an