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Board Foot Lumber Cost Calculator

Calculate total lumber cost from a board foot quantity and price per board foot.

Computed in your browser — nothing you enter is uploaded. Figures are presented for United States against IRC 2024, and every formula is cited under regulatory standards below.

Last verified 2026-08-26 · v1.0.0

Market
Imperial · sales tax

Total lumber cost

350 $

High confidence

Running these inputs gives 350 $ as the total lumber cost. Note that board feet sits at the low end of the range this calculator was checked against, so treat the output as indicative rather than settled. Currently reading for United States under IRC 2024 — pick a different market above and the figures re-cast accordingly.

Preliminary estimate, not certified engineering. This tool produces an indicative quantity calculation for planning purposes only — it is not a certified structural analysis, a guaranteed material takeoff, or a substitute for building department approval. Always verify measurements on-site and have a licensed contractor or structural engineer review any load-bearing, code-sensitive, or safety-critical work before purchasing materials or starting construction. Spotted an arithmetic or standards error? Report it to contact@craftquantities.com with your inputs — confirmed fixes become pinned regression tests.

[Schema Verified] Computed in alignment with American Concrete Institute (ACI 318-19) formulas and International Residential Code (IRC 2024) spatial boundaries.

Regulatory standards & verification citations

  • Total cost = board feet x price per board foot — hardwood and specialty lumber are commonly priced this way, unlike dimensional softwood which is usually priced per piece

Your workspace

Most jobs need more than one number. Add the calculators you need next and they open right here, underneath this one — your figures stay on screen and nothing is lost to a page change.

Frequently asked questions

Why is hardwood priced per board foot instead of per piece?
Hardwood boards come in irregular widths and lengths (often rough-sawn), so pricing by volume (board feet) rather than a fixed per-piece price accounts fairly for the actual material content of each board.
Does this account for waste from cutting to final dimensions?
No — this is a straight cost calculation from a known board foot quantity. Add extra board feet for waste before pricing if you haven't already built in a waste allowance from the Board Feet Calculator.
Does kiln-dried vs. air-dried lumber affect price per board foot?
Yes — kiln-dried lumber is generally more expensive due to the processing involved, though it's also more dimensionally stable and ready to use sooner than air-dried lumber, which needs more time to reach a stable moisture content.