Contact

Email admin@concretegravelcalculator.com. A person reads every message, usually within a few days.

What to write about

• Corrections. If a figure looks wrong, include the page address, the numbers you entered and what you expected. If you have a data sheet or a supplier's weight that differs from ours, send it along.
• Missing materials or calculators. Tell us what you were trying to work out.
• Privacy questions. Ask about the analytics the site uses or anything on the privacy page.
• Content concerns. If you believe something on the site infringes your rights, include the page address, what the content is and how to reach you, and it will be reviewed.

We can't give advice on a specific structure or site; for that, ask a local contractor, engineer or your building department. Concrete Gravel Calculator has no accounts, so there is no login or password to help with.