Editorial Policy
Concrete Calculator Yards publishes only numbers it can trace to a primary source or to its own labelled rules.
How We Write and Check Pages
- Facts come from primary sources: manufacturers, codes, standards bodies and government agencies.
- Values the site sets itself are labelled "this calculator's own rule".
- Every example on a page is produced by the calculator's engine and tested before release.
- Pages are drafted with AI assistance and checked against the sources before publishing.
- Pages are reviewed at least every six months; prices carry the year of their source.
- No company pays to be mentioned; ads never change a number.
Corrections
Report an error through the contact page; confirmed errors are fixed and the page's review date is updated.
Last reviewed 2026-11-05. Numbers come from our tested engine; see how we calculate and our sources.