Send feedback, tool requests, and engineering questions.

What to send

Use this page for practical feedback: a calculator result that needs review, a missing engineering assumption, a resource request, a broken page, or an article topic that would help working engineers. Short, specific messages are easiest to act on.

Please do not send confidential drawings, client documents, passwords, personal financial data, or commercially sensitive project packages. For engineering questions, describe the public context and the kind of tool or explanation you want EnggTools to improve.

Helpful technical context

For calculator issues, include the input values, expected units, the result you received, and the result you expected. If the question is about a steel section, tolerance stack, bolt preload, conversion, or handbook-style article, mention the standard, material assumption, or load case that made the page unclear.

For content suggestions, point to the topic gap rather than sending copied textbook pages. EnggTools uses original explanations, worked examples, and clearly marked public or licensed resources, so requests that identify a practical engineering problem are the most useful.

For website issues, include the page URL, browser or device, and what you expected to happen. For engineering-content feedback, mention whether the issue is a missing assumption, unclear formula step, unit-conversion concern, broken figure, or a standards-reference question that needs clearer wording.