Legal

Terms of service

Last updated 13 September 2026

In short: use our free guide, tutorials and templates in your own engineering work, but don't resell them. Always check the results yourself: our tools support engineering judgment, they don't replace it.

About these terms

These terms are between you and Archonstruct Engineering (archonstruct.com, formerly Civil Engineering Spreadsheets), run by a licensed civil engineer in the Philippines. By using our website or free resources, you agree to them. If you don't agree, please don't use them.

What these terms cover

• Our public pages, such as archonstruct.com/links and archonstruct.com/free-guide
• The free guide and the emails we send after you sign up
• Our free tutorials, videos and templates
• Archie, our private assistant app that connects to our YouTube channel

Engineering disclaimer

Our guides, spreadsheets, templates and tutorials are aids for qualified engineers, not a substitute for professional engineering judgment.

• You are responsible for checking every input, assumption and result before using it in a design, report or construction document.
• Confirm that the calculations meet the codes and standards that apply to your project, such as NSCP, ACI or AISC, and their current editions.
• Where the law requires it, designs must be reviewed and signed by a licensed engineer.
• Examples in our guides and videos are for learning. They may be simplified and may not suit your project.

Using our free resources

You may use the free guide, tutorials and templates in your own work, including paid engineering projects, and share links to them. You may not:

• sell, resell or republish them, or pass them off as your own
• remove our name or copyright notices from them
• use them in a way that breaks the law or misleads others

Ownership

The Archonstruct name and logo, our website, guides, templates, code and videos belong to Archonstruct Engineering. These terms don't transfer any ownership to you.

Emails

If you sign up for the free guide, we'll email it to you along with about one email a week. You can unsubscribe at any time with the link in every email. Our privacy policy explains how we handle your details.

Archie, YouTube and Google

Archie is a personal assistant app used only by Archonstruct Engineering to manage its own YouTube channel, and it isn't offered to anyone else. Archie uses YouTube API Services. By using Archie, you agree to be bound by the YouTube Terms of Service. How Archie handles Google user data is described in our privacy policy and follows the Google API Services User Data Policy.

Other websites

We link to other sites, such as YouTube and Facebook. They have their own terms and policies, and we aren't responsible for their content.

No warranty

Our free resources are provided "as is", without any warranty that they are error-free, complete or suitable for a particular purpose.

Limitation of liability

To the extent the law allows, Archonstruct Engineering isn't liable for any loss or damage from using, or being unable to use, our website or free resources. That includes losses from design, construction or business decisions based on them. Nothing in these terms limits rights you have under law that can't be limited.

Changes

We may update these terms. We'll change the date at the top when we do, and continuing to use our resources means you accept the updated terms.

Governing law

These terms are governed by the laws of the Republic of the Philippines.

Contact

Questions about these terms: [email protected]