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Home / Assemblies / GA SC3200
GA SC32001-hr Fire RatingWallLoad-BearingSTC 41
Gypsum BoardLoad-Bearing WallDesign

GA Solid Core Gypsum Board — 1 layer 5/8" Type X

Gypsum Association file SC3200 — 1-hour fire-rated solid core gypsum board. GA file SC3200: Solid gypsum core, 1 layer of 5/8" Type X gypsum board each side.

Cross-Section Diagram

1232.25"WALL ASSEMBLYSECTION · NOT TO SCALE3 LAYERSsee legend for ① ② ③
Legend
15/8" Type X gypsum board(5/8")
21" solid gypsum core(1")
35/8" Type X gypsum board(5/8")

Specifications

Fire Rating
1-Hour
STC Rating
STC 41
Load Bearing
Yes
Total Thickness
7.04"
Source / Publisher
GA (Gypsum Association)
Design Number
SC3200
Assembly Type
Wall
Test Standard
ASTM E119
Construction Group
Light Frame
Number of Layers
3 layers

Applicable Codes

IRC R302.1IBC 2024 Table 722.1

Construction Summary

GA file SC3200: Solid gypsum core, 1 layer of 5/8" Type X gypsum board each side

Material Layers

LayerMaterialThickness
15/8" Type X gypsum board5/8"
21" solid gypsum core1"
35/8" Type X gypsum board5/8"

Important Notice

This assembly listing is for reference only. Always verify against the current GA Fire Resistance Design Manual database before specifying in construction documents. Material substitutions may void the fire rating. Consult with a qualified fire protection engineer for project-specific requirements.