Home & Construction Calculators
Work out how much material to order for driveways, patios, beds and slabs — in cubic yards, tons and bags, with a waste allowance you control.
7 calculators
- Board Foot CalculatorBoard feet, linear feet and cost for a whole lumber list, by nominal size.
- Concrete CalculatorCubic yards and 40–90 lb bags for slabs, footings, post holes and stairs.
- Cubic Yards CalculatorCubic yards to order for beds, fill and holes, with a different depth for each area.
- Gravel CalculatorCubic yards, tons and bags for one or several areas, with waste included.
- Mulch CalculatorBags and cubic yards of mulch for beds and tree rings, including a top-up over old mulch.
- Paint CalculatorGallons and quarts of paint for rooms, walls and ceilings, minus doors and windows.
- Square Footage CalculatorTotal square feet for several rooms of any shape, with cut-outs, waste and boxes.
Every tool in this category follows the same pattern: measure the area, pick a depth, choose the material, and read the quantity in the unit your supplier uses. Densities and bag yields come from manufacturer data and DOT specifications, and the reference examples are automated tests — see the methodology.
Start with the material you are buying. If your project has several parts (a path plus a patio, a driveway with a turning circle), add each area in the calculator instead of estimating one big rectangle: the totals are summed for you.
Frequently asked questions
Should I order landscaping materials by the yard or by the ton?
Bulk suppliers sell loose materials by the cubic yard and heavier aggregates by the ton. Our calculators show both, using a density you can see and change, so you can compare quotes either way.
How much extra material should I add for waste and compaction?
Contractors typically add 5–10 % for uneven ground and spillage, and another 5–15 % for aggregates that compact when rolled. Each calculator has a visible allowance field set to a sensible default.
Do these calculators work in metric units?
Yes. Every construction calculator has an imperial/metric toggle. Imperial (feet, inches, cubic yards, U.S. tons) is the default because that is how U.S. suppliers quote.