Feedback & support

Contact us

Report a calculation problem, suggest a useful tool or ask about the site's content and policies.

What we can help with

Send calculation errors, unclear wording, broken links, source corrections, accessibility problems or suggestions for a focused construction-planning guide. Useful reports are specific enough to reproduce.

For a calculator issue

  • Name the calculator and page URL.
  • List every input, selected unit and option.
  • Copy the displayed result and show the result you expected.
  • Explain the formula or source behind the expected value.
  • Mention browser and device only if the problem is visual or interactive.

For a content correction

Quote the disputed sentence, explain why it is incomplete or wrong, and include a primary source where possible. We prioritize errors that could affect calculations, safety interpretation or project cost decisions.

What we cannot provide by email

We cannot design reinforcement, approve drawings, certify work, select a contractor, issue a project quotation or replace a local engineer, architect, quantity surveyor or legal adviser. Do not send payment information, identity documents, complete confidential drawings or other sensitive project files.

How the form works

This static website has no message-processing backend. The form validates the fields and prepares a draft in your own email app; nothing is sent until you choose to send it. You can also email contact@greystructurecalc.com directly.

Privacy and retention details are explained in the Privacy Policy. Editorial corrections follow the Editorial Policy.

No message is sent by the website; this form prepares a draft in your email app.