Terms of Use
By using Project Material Calc you accept these terms.
Last updated: September 28, 2026
Using the site
Project Material Calc is free to use and needs no account. Please do not misuse the site, for example by trying to disrupt it or by placing an unreasonable load on it.
Estimates, not professional advice
The calculators estimate quantities of material from the numbers you enter. The results and the texts are general information. They are not professional advice, structural design or a check against a building code.
The example values in the calculators, such as coverage, product sizes, yields and densities, describe typical products. Your product may differ. Check the label and the instructions of the manufacturer.
Check important results yourself before you act on them, for example before you buy material, sign a contract or build anything that affects safety, such as stairs, decks, roofs, footings and walls.
No warranty
The site is provided as it is. We try to keep it correct and available, but we do not promise that it is free of errors or that it is always available.
Liability
To the extent permitted by law, we are not liable for damage that results from the use of the site or from reliance on its content.
Advertising and links
The site may show advertisements from third parties and may link to other websites. We do not endorse advertised products or services, and we are not responsible for the content of other websites.
Changes to these terms
We may change these terms. The date at the top of the page shows the latest revision.
Contact
If you have a question about these terms, please write to us.