Legal

Terms of Use

Terms governing use of the site, its cost guides, calculators, links and advertising.

Last updated: August 2, 2026

Acceptance

By using this site, you agree to these terms. If you do not agree, do not rely on or use the site.

Informational purpose

Content and calculators are general educational resources. They are not quotations, engineering designs, legal opinions, safety certifications, code reviews, insurance advice or professional instructions.

No client relationship

Use of the site does not create a consultant, contractor, engineer, lawyer, safety professional or other professional-client relationship.

Calculator results

Results depend on the assumptions entered and simplified formulas. Actual specifications, taxes, labour, access, permits, freight, site conditions and recurring fees may differ substantially.

Permitted use

You may use the site for personal or internal business research. Automated scraping, resale of the content, removal of attribution, interference with site operation and attempts to misuse the calculators are prohibited.

Third-party services

Advertising and external links may lead to third-party services. We do not control or endorse every claim, product or service presented by those parties.

Availability

The site may be changed, interrupted or withdrawn without notice. We do not guarantee that every page or tool will remain available.

Liability

To the maximum extent permitted by law, the publisher is not liable for losses arising from reliance on general content, calculator outputs, vendor decisions or third-party services. Obtain project-specific advice before committing funds or changing a facility.