Terms of Use
By using this site you agree to these terms. They're short and written in plain English.
Last updated: September 29, 2026
Estimates, not guarantees
Our calculators and guides give estimates for planning purposes. Actual quantities depend on your site, the specific products you buy, how they're installed and on measurement accuracy. Always confirm quantities with your supplier before ordering, and follow the manufacturer's instructions for any product you use.
Not professional advice
Nothing on this site is engineering, architectural or legal advice. Structural elements such as footings, foundations, retaining walls and driveways are subject to local building codes and may require permits or a professional design. You're responsible for complying with the codes and regulations that apply to your project.
No warranty
The site is provided "as is", without warranties of any kind. We work to keep our formulas and data accurate, but we can't guarantee that every page is complete, current or error-free.
Limitation of liability
To the fullest extent permitted by law, SizeMyProject and its operators aren't liable for any loss or damage arising from the use of the site, including over- or under-ordering of materials, project delays or property damage.
Using our content
You're welcome to use the calculators for personal and commercial projects and to share links to any page. Please don't copy our pages or reproduce our content in bulk without permission.
Changes
We may update these terms from time to time. The date at the top shows when they last changed. Questions? Email hello@sizemyproject.com.