About LogBoardFeetCalculator.com
A free, accurate, no-signup board feet calculator built by people who actually measure wood for a living.
Our Mission
Board feet calculations affect real money. A wrong figure on a hardwood pack invoice, a misjudged Doyle estimate at a log auction, or a mismatched yield assumption between buyer and seller can cost thousands and damage relationships across a small industry. We built this site to remove guesswork.
Every woodworker, sawmill operator, forester, lumber buyer, and curious DIYer should have access to a calculator that returns the same numbers a seasoned lumber yard manager would write on the back of an envelope — instantly, on any device, in any country.
What We Cover
- Lumber board feet — finished boards, both rough and surfaced, in any dimension.
- Log board feet — estimated yield using Doyle, Scribner Decimal C, International ¼-inch, and Smalian's formula.
- Batch calculation — for hardwood packs and multi-board invoices.
- Educational content — formulas, nominal vs actual sizes, log rule history, and yield conversion.
Editorial Standards
- Cite primary sources. Formulas come from USDA Forest Service publications, NHLA grading rules, and peer-reviewed forestry research — not other calculator websites.
- Update when conventions change. Sawmill technology and regional preferences evolve. We revisit our content annually and post a methodology changelog.
- Respect the reader's time. No popups, no autoplay video, no 1,200-word intros before the calculator. The tool loads first.
Methodology Sources
- USDA Forest Service General Technical Report NE-191 — log rule reference.
- NHLA (National Hardwood Lumber Association) Rules for the Measurement and Inspection of Hardwood and Cypress.
- US Forest Service field measurement handbooks for Scribner Decimal C.
- Avery & Burkhart, Forest Measurements, McGraw-Hill — Smalian's formula and cubic-volume conversion.
How We Make Money
This site is supported by display advertising and optional affiliate links to lumber-industry tools we personally use. We never recommend a product we haven't tested, and ad placements do not influence our content.
Contact
Spotted an error or have a feature request? Send us a message. We read every email.