Terms of Use

Last updated: August 16, 2026

Educational purpose

The guides, charts and calculators on this site are provided for general education and preliminary planning. They are not a substitute for machine documentation, applicable standards, professional engineering advice or workplace safety procedures.

Calculator results

Results depend on the values and assumptions entered. Verify important decisions with qualified personnel, current documentation and a controlled test.

External links

We may link to research repositories, manufacturers, retailers and other third-party websites as references. We do not control their content, availability, prices or privacy practices.

Intellectual property

Original text, layouts, charts and calculator interfaces may not be republished as a competing product without permission. Third-party material remains subject to its stated license and attribution.

No warranty

The website is provided on an “as available” basis. While we work to correct errors, we cannot guarantee that every page or calculation is complete or suitable for every application.

Changes and contact

We may revise these terms when the website changes. Questions can be sent through our Contact page.