Terms and conditions

Last updated 15 November 2026

These terms apply to your use of structuralengineertoolbox.com (the site) and every calculator, generator and other tool on it (the tools). By using the site you agree to them. If you do not agree, do not use the site.

1. What the tools are

The tools are free aids for people with engineering training. They automate arithmetic and bookkeeping. They are general information only and are not engineering advice, a design service or a certification of any structure.

2. Your responsibility

• You are responsible for checking every output before you rely on it, including against the current edition and amendments of the relevant Standards and the requirements of your project.
• Any design that uses an output must be prepared or reviewed by a suitably qualified engineer, who remains responsible for it.
• You are responsible for the inputs you enter and for confirming that a tool's stated assumptions and limits suit your situation.

3. No warranty

The site and the tools are provided as is. We try to keep them correct, but we do not promise that they are accurate, complete, current, free of errors or suitable for any particular purpose. Standards are amended over time and a tool may not reflect the latest amendment.

4. Limit of liability

To the fullest extent the law allows, we are not liable for any loss, damage, cost or claim arising from your use of, or reliance on, the site or the tools. This includes direct, indirect and consequential loss, and loss arising from errors in a tool.

Nothing in these terms excludes or limits a right or remedy you have under the Australian Consumer Law or any other law that cannot be excluded. Where our liability cannot be excluded but can be limited, it is limited to supplying the service again.

5. Standards and trade marks

The tools refer to clauses of Australian and New Zealand Standards. The Standards are not reproduced on this site, and you need your own licensed copies to use the tools properly. Product names such as SPACE GASS are trade marks of their owners. This site is independent and is not affiliated with, sponsored by or endorsed by any software vendor or standards body.

6. Our content

The site's text, design and code belong to us. You may use the tools for your own work, including commercial projects. You may not copy the site or republish the tools as your own.

7. Advertising and links

The site may show advertising and links to other websites. We do not control those sites or endorse the products advertised.

8. Changes

We may change the tools, remove them, or update these terms at any time. The date at the top shows the latest version. Continuing to use the site means you accept the current terms.

9. Governing law

These terms are governed by the laws of Victoria, Australia, and the courts of Victoria have jurisdiction.

10. Contact

Questions about these terms, or reports of an error in a tool: contact@structuralengineertoolbox.com