Minimum-value rule
A route must answer a distinct task and add several useful layers beyond a basic dimension: market disambiguation, source context, tolerance, original visual comparison, calculation or an actionable measurement path. Unit variants and arbitrary pairs do not become pages.
Sources and originality
We prefer authoritative or independent references where available, then national retailers and manufacturers for current market practice and finished-product examples. No third-party prose, table arrangement, diagram, photograph or logo is copied.
Automation and human review
Structured publishing and calculations may be automated, but facts, page families and visible output are reviewed before launch. We do not invent expertise, testing, popularity, reviews or endorsements.
Review frequency
Core links are checked every six months. The fact set receives an annual review and an earlier review when a credible correction or source change is identified.
Last reviewed: 27 August 2026.