Construction calculators

Calculate tonnage, volume, and truckloads of hot mix asphalt or bags of cold patch for any driveway or paving project.

Estimate the number of bricks and mortar bags needed for any wall — with door and window openings, standard brick sizes, and waste factor.

Calculate carpet square yardage and total cost including padding and installation for any room size.

Calculate how many concrete blocks (CMU) you need for a wall, including courses, blocks per course, waste factor, and mortar bags.

Calculate how much concrete you need for slabs, footings, and cylindrical columns in cubic yards, cubic feet, and cubic meters. Also shows how many 60-lb and 80-lb bags to buy.

Estimate decking boards, joists, rim joists, and screws needed for any wood or composite deck — with waste factor.

Calculate drywall sheets, joint compound, tape, and screws for any room — including walls and ceiling with waste factor.

Calculate bank volume, loose volume, and dump trucks needed for any excavation project — with soil-type swell factors for clay, loam, sand, and rock.

Calculate posts, rails, pickets, concrete bags, and chain-link rolls for any fence — with gate count, post spacing, and waste factor.

Calculate how much flooring to buy for any room. Enter room dimensions and a waste percentage to get total square footage, square yards, and an optional box count for packaged flooring products.

Calculate studs, plates, headers, and total 2×4 lumber needed for any wall — with doors, windows, and waste factor.

Calculate how much gravel, pea stone, or crushed rock you need. Enter length, width, and depth to get cubic yards, cubic feet, and estimated tons.

Calculate gutter length, downspouts, elbows, end caps, and joint connectors for any roof — with size recommendation and waste factor.

Calculate bags or rolls of insulation needed for any area and R-value — covers blown-in fiberglass, cellulose, batts, and spray foam.

Calculate board feet from lumber dimensions. Add multiple sizes and quantities to get total board feet, piece count, and lineal feet.

Calculate how much mulch you need in cubic yards, cubic feet, and bags for any garden bed or landscape area.

Calculate how many gallons of paint you need for any room. Enter wall area, number of coats, coverage rate, and waste percentage to get an exact gallon count and a rounded-up purchase quantity.

Calculate the number of rebar bars, total linear footage, weight, and estimated cost for concrete slabs — with bar size and spacing options.

Calculate shingle bundles, roofing squares, ridge cap, and nails for any roof — with pitch factor, waste, and shingle type.

Calculate how much sand you need in cubic yards, cubic feet, and tons for any leveling, playground, patio, or construction project.

Calculate siding squares, boards, or panels for any house — with door and window deductions, exposure setting, and waste factor.

Calculate the square footage of one or more rooms in rectangle, circle, or triangle shapes. Supports feet, inches, meters, and yards with totals in all four unit systems.

Calculate step count, actual riser height, stringer length, and tread boards for any staircase — with IRC code compliance check.

Calculate how many tiles you need for any room. Enter room dimensions, tile size in inches, grout joint width, and waste percentage to get a tile count with an extra-tile buffer.

Calculate how much topsoil you need in cubic yards, cubic feet, and tons for any garden, lawn, or raised-bed project.

Calculate how many rolls of wallpaper you need for a room, accounting for wall area, doors, windows, and pattern repeat waste.