Terms of Use
By using Free Board Foot, you agree to these terms. If you do not agree, please do not use the site.
Use of Calculators
The calculators, converters, charts, and reference guides on this site are provided free of charge for informational and estimation purposes. You may use them for personal, professional, or commercial purposes at no cost and without registration.
Results are mathematical estimates based on the formulas and inputs provided. They are intended as planning tools and starting points — not as certified measurements, professional appraisals, or legally binding determinations of quantity, value, or quality.
Professional Disclaimer
The tools on this site are not a substitute for:
- Licensed log scalers — timber volumes for commercial timber sales must be measured by a licensed log scaler following the applicable state or federal scaling rules.
- Licensed consulting foresters — timber cruises, stand appraisals, and timber sale management require professional forestry expertise.
- Structural engineers — lumber load calculations for structural applications must be performed or reviewed by a licensed structural engineer.
- Certified lumber graders — NHLA grade determinations for formal commercial transactions require in-person grading by a certified inspector.
Always confirm measurements and pricing with a qualified professional before entering into financial transactions.
No Warranty
Free Board Foot makes no warranty, expressed or implied, regarding the accuracy, completeness, reliability, or fitness for a particular purpose of any calculator result, reference value, or guide content. The site and all tools are provided "as is." Formulas and reference data are drawn from published industry standards and government publications, but errors in implementation or interpretation are possible.
Limitation of Liability
Free Board Foot and its authors are not liable for any financial loss, business decision, contractual dispute, or other damage arising from reliance on calculator results or site content. Use of this site is at your own risk. In no event shall Free Board Foot's liability exceed zero dollars.
Intellectual Property
Text, tables, page design, and original code on this site are the intellectual property of Free Board Foot. The mathematical formulas underlying the calculators — including the Doyle log rule, Grosenbaugh polynomials for the International ¼-inch rule, NHLA grading conventions, and USDA density data — are in the public domain or published by government agencies and are used consistent with their original publication terms.
You may not republish, scrape, or redistribute content from this site without written permission. Linking to any page is permitted and encouraged.
Acceptable Use
You agree not to use this site to: (a) distribute malware or conduct attacks against the site or its infrastructure; (b) attempt to reverse-engineer, scrape, or republish site content at scale; (c) represent calculator results as certified professional measurements in contexts where certified measurements are legally required.
Changes to These Terms
We may update these terms at any time. The revision date at the bottom of this page reflects the most recent change. Continued use of the site after any update constitutes acceptance of the revised terms.
Questions: hello@freeboardfoot.com · Contact page
Last updated: September 2026
Frequently Asked Questions
Can I use these calculators for commercial purposes?
Yes. The calculators are free for any use — personal, professional, or commercial. A timber broker, lumber dealer, contractor, or woodworking business may use any tool on this site freely. The tools are provided as-is with no warranty; the responsibility for verifying results before financial transactions rests with the user.
Are the calculation results legally binding?
No. Results are estimates for informational and planning purposes only. They are not a substitute for measurements taken by a licensed log scaler, a professional survey, a certified lumber grader, or a registered consulting forester. Do not rely solely on this site's results for timber sale contracts, insurance claims, import/export documentation, or any other context where certified measurements are required.
Can I embed or link to these tools?
Yes, you are welcome to link to any page on this site. Embedding calculators in iframes or republishing the content on other sites is not permitted without written permission. If you want to integrate a specific calculation into your own application, contact us to discuss options.
What should I do if I believe a calculation result is wrong?
Report it via the contact page with your input values, the result shown, and the expected result along with a source. We take accuracy reports seriously and investigate each one against the original source documents. If a confirmed error is found, it is corrected promptly. We do not guarantee any specific response time.