Construction & DIY Calculators
Order the right amount of concrete, gravel, shingles, paint, tile, drywall, fencing and sod the first time, with the waste allowances contractors actually use, plus stair layouts and air conditioner sizing.
- Asphalt CalculatorTons of hot-mix asphalt for a driveway, path or parking area, with waste and delivered cost.
- Rebar CalculatorBars, lap splices, weight and sticks to buy for a slab, footing or deck grid.
- Concrete CalculatorCubic yards of ready-mix for slabs, footings, grade beams, columns and caissons, with waste and cost.
- Concrete Bag CalculatorHow many 40, 60 or 80 lb bags of premix concrete for a pad, a set of post holes or a known volume.
- Gravel CalculatorTons and cubic yards of crushed stone, pea gravel or road base for a driveway, path or slab sub-base.
- Roof Pitch CalculatorRoof pitch from rise and run or an angle, and the roof area, squares and shingle bundles for a house.
- Paint CalculatorGallons and quarts of paint for a room's walls and ceiling, less doors and windows, for any number of coats.
- Tile CalculatorHow many tiles and boxes for a floor or wall, allowing for the grout joint and waste for your layout.
- Mulch CalculatorCubic yards and bags of mulch for a garden bed or tree ring, with the cost in bags and in bulk.
- Drywall CalculatorDrywall sheets for a room's walls and ceiling, with the screws, joint tape and compound to finish them.
- Fence CalculatorPosts, rails, pickets or panels and bags of post concrete for a wood fence, including gates.
- Sod CalculatorSquare feet, pallets and pieces of sod for a new lawn, with a waste allowance and the cost.
- BTU Calculator for Air ConditionersWhat size air conditioner a room needs, in BTU per hour and tons, from its area, ceiling height, sun and use.
- Stair CalculatorNumber of steps, riser height, total run and stringer length for a straight staircase, checked against code.
- Wallpaper CalculatorRolls of wallpaper for a room or feature wall, counted strip by strip and allowing for the pattern repeat.