Lumber Calculators
Free lumber calculators for board feet, wall framing, and deck lumber. Enter your dimensions to get board counts, total board footage, and a cost estimate — instantly.
Lumber Board Feet Calculator
Calculate the total board footage for any lumber order in seconds. Enter your nominal board dimensions, length, and…
Calculate now →Framing Lumber Calculator
Calculate the studs, plates, and board footage needed to frame a wall in seconds. Enter your wall length,…
Calculate now →Deck Lumber Calculator
Calculate the decking boards, joists, and total board footage for any deck size. Enter your deck dimensions, board…
Calculate now →About these lumber calculators
All calculators use nominal lumber dimensions (the size you ask for, e.g. 2×4) with the industry-standard board feet formula: (thickness × width × length) ÷ 12. Results include a 10% waste factor by default and a cost estimate at ~$0.85/BF that you can adjust in each calculator. Always confirm pricing with your local lumber yard before ordering.
When to use each lumber calculator
Use Board Feet for takeoffs and pricing, Framing for studs and plates in wall assemblies, and Deck for joists, beams, and decking counts. Choosing the right calculator first prevents over-ordering and keeps your estimate aligned to project type.
Lumber planning tips
Separate structural members from finish material in your estimate and review local span requirements before purchasing. For framing and decks, verify grade and species with your supplier so pricing and load expectations match your build.