Look up a specific UL/GA fire-resistance-rated wall or ceiling assembly design number for a gypsum board partition and confirm its listed STC/fire rating from the current Gypsum Association manual.
domain: gypsum.org / gypsumpublications.com (GA-600 Fire Resistance and Sound Control Design Manual) · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Search gypsum.org for the assembly type (e.g., wood-stud, steel-stud, shaftwall) to confirm which GA-600 edition covers it
Note GA-600 is sold as a PDF through gypsumpublications.com and requires an email/account to download -- there is no free bulk-lookup API
Cross-reference the design number against UL's own Product iQ database (ul.com) since many GA-600 systems are also UL-listed and IBC/NFPA reference both sources
Pull the exact assembly detail (stud spacing, board layers, insulation, fastener schedule) from the purchased PDF rather than summaries on contractor blogs
Verify the manual edition year matches what the local jurisdiction's adopted IBC edition references, since older UL/GA designs can be withdrawn
Known gotchas
GA-600 is a paid PDF product (current edition GA-600-2024); there is no public API or free full-text access despite the Association's site giving away marketing pages
Design numbers found on secondary sites (Pinterest, contractor blogs) are frequently outdated or transcribed incorrectly -- always confirm against the purchased manual or UL Product iQ
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