Email: 362992@gmail.com
Reporting a calculation problem
If a result looks wrong, please send:
- the calculator’s name or address,
- the values you entered and the unit system (US or metric) – the “Share link” button copies a link that contains them,
- the result you expected and why.
Corrections are checked against the formula and its tests before the calculator is updated.
What we can’t help with
We can’t review project plans, give structural or engineering advice, or confirm that a design meets your local building code. Please ask a qualified professional or your local building department.