Calculators for weekend projects
Project math that updates as you type. Each page puts the calculator first and shows the formula underneath, so you can check the work yourself.
Board Foot Calculator
Board feet and lumber cost for a whole cut list: thickness, width, length, quantity, price per board foot.
Linear Foot Calculator
Total linear feet and cost from lengths in feet and inches, with a square feet to linear feet converter for decking and flooring.
Square Footage Calculator
Square feet, square yards, and square meters for rectangles, circles, and triangles, one room per row.
Cubic Yard Calculator
Convert length, width, and depth to cubic yards and cubic feet for mulch, gravel, soil, or concrete.
Mulch Calculator
Cubic yards, bag counts, and cost from each bed's length, width, and depth.
Gravel Calculator
Cubic yards, tons, and cost for crushed stone, pea gravel, limestone, and riverstone.
Topsoil Calculator
Cubic yards, 40-lb bags, and weight for each area you need to fill, with an optional cost estimate.
Sand Calculator
Cubic yards, tons, and 50-lb bags for paver base, sandbox, and masonry work.
Sod Calculator
Rolls, pallets, and square yards of sod for your lawn, with waste built in.
Asphalt Calculator
Tons of hot-mix asphalt and estimated cost for a driveway or patch job.
Fence Calculator
Posts, rails, pickets, and concrete bags from fence length and post spacing.
Stair Stringer Calculator
Riser count, riser height, tread run, and stringer length, checked against IRC limits.
Wallpaper Calculator
Rolls needed from wall sizes, roll width, and pattern repeat.
Why these calculators?
Most project calculators bury the answer under ads and interstitials. These pages put the calculator at the top and keep it usable on a phone in the lumberyard aisle. Every worked example on the site is real arithmetic you can re-run.