Contact
Corrections are the most valuable message we get — please send them.
Write to hello@reckonbuild.com. We read everything and usually reply within a few business days.
Reporting a calculation error
Include the calculator name, the exact inputs you entered, the result you got and the result you expected, plus the source you are comparing against. That is enough for us to reproduce the issue and correct the page or the constant behind it.
Suggesting a calculator
Tell us the trade, the inputs you would enter in the field and the output that would actually save you time. Tools that answer a concrete ordering question get built first.
Advertising and press
Use the same address with "Advertising" or "Press" in the subject line. We do not accept paid links inside calculator content or editorial text.