Free project calculators
Measure once. Let the math be right the first time.
Fast, no-login calculators for lumber, decks, concrete, and drywall. Built by someone who actually buys the materials.
Calculators
Board Foot Calculator
Board feet and lumber cost from thickness, width, and length.
Stair Stringer Calculator
Rise, run, and stringer layout that meets code.
Coming soon
Epoxy Pour Calculator
Resin volume for river tables, molds, and coatings.
Coming soon
Baluster Spacing Calculator
Even spindle spacing that passes the 4-inch sphere rule.
Coming soon
Post Hole Concrete Calculator
Bags of concrete per post hole or sonotube.
Coming soon
Wood Movement Calculator
Seasonal expansion and contraction by species and width.
Coming soon
Deck Stain Calculator
Gallons of stain or sealer for your deck size.
Coming soon
Drywall Estimator
Sheets, mud, tape, and screws for any room.
Coming soon
Decking Board Calculator
Deck boards and fasteners from joist spacing and deck size.
Coming soon
Fence Material Calculator
Posts, rails, pickets, and concrete for your fence run.
Coming soon