About & Terms

Last updated: April 2026

1. Informational Purpose Only

All calculators, tools, charts, and outputs provided on this website ("the Tools") are made available solely for informational, educational, and preliminary-estimation purposes. Nothing on this site constitutes professional engineering advice, a stamped or sealed engineering design, or a recommendation suitable for use in any final construction, procurement, or regulatory document.

2. No Warranty

The Tools are provided "as is" and "as available" without warranty of any kind, express or implied. To the fullest extent permitted by law, the site owner expressly disclaims all warranties, including but not limited to:

• Warranties of merchantability, fitness for a particular purpose, or non-infringement;
• Warranties that any calculation result is accurate, complete, current, or error-free;
• Warranties that the site will be available without interruption or that defects will be corrected.

Engineering calculations involve assumptions and simplifications. Results may differ from measured field conditions, manufacturer data, or the output of other software tools.

3. Independent Verification Required

Any output produced by these Tools must be reviewed, checked, and approved by a qualified, licensed professional engineer before it is used in any design document, specification, procurement order, construction drawing, or submission to a regulatory authority. The user bears full responsibility for ensuring that all results are appropriate for the intended application.

4. Limitation of Liability

To the maximum extent permitted by applicable law, the site owner, contributors, and any affiliated parties shall not be liable for any:

• Direct, indirect, incidental, special, consequential, or exemplary damages;
• Loss of profit, revenue, data, goodwill, or business opportunity;
• Personal injury, property damage, or economic loss;
• Damages arising from reliance on any calculation output, whether or not the possibility of such damages was foreseeable or the site owner was advised of their possibility.

This limitation applies regardless of the theory of liability (contract, tort, negligence, strict liability, or otherwise) and even if a remedy fails of its essential purpose.

5. User Responsibility

By using this website you acknowledge that:

• You have read and understood this disclaimer;
• You will not rely solely on these Tools for any engineering decision;
• You will engage a qualified licensed engineer to review all outputs before implementation;
• You use the Tools entirely at your own risk.

6. Intellectual Property

The code, design, and content of this site are the property of the site owner. You may use the Tools for personal or internal professional reference but may not reproduce, resell, or redistribute the site or its source code without express written permission.

7. Changes to These Terms

These terms may be updated at any time without prior notice. Continued use of the site following any change constitutes acceptance of the revised terms.

8. Governing Law

These terms are governed by the laws of the jurisdiction in which the site owner is domiciled. Any dispute arising from use of this site shall be subject to the exclusive jurisdiction of the courts of that jurisdiction.