Typical assembly (not a tested listing)

4-Hour Fire Rated Shaft Wall — 4 layers 5/8" Type X

Typical 4-hour fire-rated shaft wall assembly. 2-1/2" CT studs at 24" o.c. with R-8 mineral wool, 4 layers of 5/8" Type X gypsum board each side. Illustrative example of typical construction — not a tested UL or GA listing. Use a listed design (UL Product iQ or GA-600) for construction documents.

2-1/2" CT studs at 24" o.c. with R-8 mineral wool, 4 layers of 5/8" Type X gypsum board each side

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  • Layer-by-layer components with thicknesses
  • Cross-section diagram
  • Applicable code sections and test standard
  • 6 related assemblies
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