Home & construction
Materials for your next project: square footage, concrete in cubic yards and bags, paint gallons, flooring, tile, gravel and mulch, with sensible waste allowances and the math shown.
Pick a calculator
- Concrete CalculatorCubic yards (or m³) and bags of concrete for slabs, footings, columns and steps, with an order allowance.
- Drywall CalculatorDrywall sheets for walls and ceiling, with screw and joint compound estimates from USG data.
- Flooring CalculatorBoxes of flooring for a room: area plus a waste allowance, rounded up to whole cartons, with cost.
- Gravel CalculatorCubic yards, tons and bags of gravel or crushed stone for an area and depth, using a state DOT density.
- Mulch CalculatorCubic yards of mulch for a bed at a set depth, bags vs bulk, using the extension-service 324 rule.
- Paint CalculatorGallons or liters of paint for a room, minus doors and windows, for one or more coats, with cost.
- Roofing CalculatorRoofing squares, shingle bundles and underlayment rolls from footprint and pitch or roof area, with waste.
- Square Footage CalculatorSquare feet (or m²) for rectangles, triangles, circles and L-shapes, summed, with cost per square foot.
- Tile CalculatorTiles and boxes for a floor or wall from tile size and grout joint width, with overage and cost.