Content is published by the Calc for Trades Editorial Team. We do not claim engineering, electrical, roofing or contracting credentials that the site does not have. Safety-sensitive work must be verified by an appropriately qualified professional.
Who creates the content
Calc for Trades is an independently operated website. Calculator logic, worked examples, explanatory copy and field guides are maintained by the Calc for Trades Editorial Team. Questions and correction reports are accepted at tradecalcus.contact@gmail.com.
What must be shown
Every calculator page should identify the units, formula or method, assumptions, a worked example, common mistakes and the limits of the result. Each blog article must support one calculator with a distinct measurement or planning problem rather than repeat a keyword with generic advice.
Formula and example review
Before publication, default calculator results are checked against independently calculated expected values. Worked examples are recalculated from their stated inputs. Where a manufacturer, standards body or established industry source is relevant, the page links to it for further checking.
Safety-sensitive topics
Electrical, stair, stringer and roofing content is planning information—not a design, inspection, permit decision or installation instruction. Pages state which checks remain outside the calculator, including code, structural, ampacity, protection, access and manufacturer requirements.
Sources and commercial independence
External references are selected because they clarify a formula, unit, product yield or safety context. A link does not imply endorsement. Editorial content is not written to promise a purchase outcome, and current guides contain no paid product recommendations.
Corrections
Readers can report a possible error through the Contact page. A useful report includes the page name, the exact inputs or statement, the observed result, the expected result and a supporting source when available. Material corrections update the visible review date.
Advertising separation
Advertising may support the site after approval, but ads do not change formulas, worked results or safety limits. Advertising will be visually distinguishable from calculator inputs, results and editorial content.