Contact

Email us at support@buildcalcs.best — we read everything.

Especially useful

• Formula and rule-of-thumb corrections: if a published source or manufacturer spec disagrees with our numbers, send the source and we'll update.
• Bug reports: tell us the page, what you entered, and what you expected.
• Missing calculators you wish existed — the roadmap is built from these requests.

We can't provide engineering judgments or project-specific code interpretations — that's a job for your engineer or building department.