Home Improvement Calculators
Material estimators for remodeling and building projects. Each calculator rounds up to the bags, boxes, sheets or bundles you actually buy, and adds a waste allowance you can change.
- Concrete Slab CalculatorEnter the slab size and thickness to get cubic yards, the number of premix bags to buy and an optional bags-vs-truck cost check.
- Concrete Column & Post Hole CalculatorWork out the concrete for round piers, form tubes and post holes — one hole or a whole deck’s worth.
- Concrete Footing CalculatorEstimate concrete for continuous strip footings under walls, garages and additions.
- Concrete Steps CalculatorEstimate concrete for solid poured steps and a top landing, like a front stoop or garage entry.
- Concrete Block (CMU) CalculatorCount standard 8×8×16 concrete blocks and mortar bags for a wall, with doors and windows subtracted.
- Brick CalculatorFind how many bricks a wall or veneer needs, based on your brick size and mortar joint.
- Paver CalculatorPlan a paver patio or walkway: pavers, base gravel and bedding sand in one go.
- Rebar CalculatorLay out a rebar grid for a slab: bars each way, total length, sticks to buy and weight.
- Cubic Yard CalculatorTurn a length, width and depth into cubic yards for any bulk material.
- Square Footage CalculatorGet the area of a room, yard or odd-shaped space in square feet, square yards and square meters.
- Board Foot CalculatorWork out board feet and cost for hardwood and rough lumber.
- Drywall CalculatorEstimate drywall sheets for a room, plus the screws, tape and joint compound to finish it.
- Paint CalculatorWork out gallons (and quarts) of paint for a room’s walls and ceiling.
- Tile CalculatorCount tiles and full boxes for a floor or wall, with the right waste for your layout pattern.
- Flooring CalculatorWork out boxes of laminate, vinyl plank or hardwood for a room, closets included.
- Carpet CalculatorFind how much carpet to cut from a 12 ft or 15 ft roll and how many square yards you pay for.
- Wallpaper CalculatorCount wallpaper rolls the way installers do — by full-height strips, with pattern repeat.
- Baseboard & Trim CalculatorGet linear feet of baseboard or trim and how many 8, 12 or 16 ft pieces to buy.
- Roofing CalculatorEstimate roof area, squares, shingle bundles and underlayment from your house footprint and pitch.
- Roof Pitch CalculatorConvert rise and run into pitch, angle and rafter length.
- Deck Board CalculatorCount decking boards, joists and deck screws for a rectangular deck.
- Fence CalculatorPlan a wood fence: posts, rails, pickets and concrete bags for every post hole.
- Stair CalculatorLay out a straight stair: risers, treads, total run and stringer length, checked against common US code limits.
- Asphalt CalculatorEstimate tons of hot-mix asphalt for a driveway or pad.
- Lumber Cut List CalculatorList your parts; get the fewest boards to buy and exactly what to cut from each one.