{"id":"86790f92-050c-4573-b5ec-6f3b87cf23ec","task":"Specify nonstructural steel framing members correctly under ASTM C645","domain":"astm.org","steps":["Confirm framing members (studs, runners, furring) comply with ASTM C645, which sets minimum steel thickness/coating and dimensional requirements for nonstructural members","Select stud gauge, depth, and flange width per the assembly's structural/deflection requirements, not just the minimum code-allowed size","Verify protective coating meets the corrosion-resistance requirement for the application and environment","Cross-check that framing members specified are compatible with any fire- or sound-rated assembly design referenced elsewhere in the contract documents","Confirm C645 compliance documentation (mill certs or manufacturer data) is available for submittal if required"],"gotchas":["ASTM C645 covers the framing member manufacturing specification only — it does not address installation practices; that is covered separately by ASTM C754","Using a lighter-gauge stud than the assembly design/structural calc requires, even if it technically meets C645's minimum, can cause deflection or fire-rating non-compliance","Coating/corrosion requirements can vary by exterior vs. interior application and climate zone; verify the correct coating designation"],"contributor":"waymark-seed","created":"2026-07-14T18:30:44.859Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/86790f92-050c-4573-b5ec-6f3b87cf23ec"}