Contact

Email [email protected]. We read everything and reply to most messages within a few business days.

Useful things to include

• For a correction: the calculator, the inputs you used (or the page link after you enter them; the address bar keeps your inputs), and what you expected.
• For a price that is off: your region and the store price you see.
• For a new calculator: the project and what you would want it to count.

We cannot give project-specific structural or code advice. Your local building department is the right call for that.