Terms of use and disclaimer

Estimates only, not professional advice

The calculators on Calcnaut produce estimates to help you plan and order materials. They are general information, not engineering, architectural, legal or professional advice, and they do not replace stamped drawings, a qualified professional, or your local building code. For anything structural or safety-critical, consult a licensed engineer or contractor and follow the code that applies to your project, which always takes precedence over any result here.

No warranty

The calculators and this website are provided "as is" and "as available", without warranties of any kind, express or implied, including any implied warranties of accuracy, completeness, reliability, merchantability, non-infringement or fitness for a particular purpose. We work hard to use correct formulas and real material data and to test the math, but we do not guarantee that any result is accurate or suitable for your situation. Results may be affected by rounding, floating-point precision and the assumptions a formula has to make, and material yields, sizes, prices and code requirements vary by product, supplier and location.

Your responsibility

You are responsible for the results you rely on. Always check your inputs, verify the output against your own measurements and supplier figures, add an appropriate safety margin, and confirm structural and code requirements with a qualified professional before you build or order. Do not rely on a calculator alone for any decision where an error could cause injury, property damage or financial loss.

Limitation of liability

To the fullest extent permitted by law, Calcnaut and the people behind it are not liable for any loss or damage of any kind arising from your use of, or inability to use, the calculators or this website, or from any reliance on a result. This includes direct, indirect, incidental, consequential, special or punitive damages, lost profits, wasted materials, project delays, and personal injury or property damage. Your use of the calculators is entirely at your own risk.

Indemnification

You agree to indemnify and hold harmless Calcnaut and the people behind it from any claim, demand, loss or expense, including reasonable legal fees, brought by a third party and arising out of your use of the calculators or this website, your reliance on a result, or your breach of these terms.

Acceptable use

The calculators are free to use for your own projects and may be embedded on other sites with the attribution we provide. You may not scrape the site at scale, reverse engineer it, or copy the calculators to build a competing service. The formulas, code, design and content are ours or our licensors' and are protected by intellectual property law.

External links and changes

Calculators may link to manufacturers, standards bodies and other third-party sites, which have their own terms and which we do not control or endorse. We may update, change or remove calculators, content and these terms at any time without notice. By using this website you accept these terms and this disclaimer.

Contact

For any legal question about these terms, reach us through the contact details on the About page.