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Home / Assemblies / GA SP2215
GA SP22153-hr Fire RatingWallLoad-BearingSTC 34
Steel StudMulti-Layer GypsumLoad-Bearing WallDesign

GA Steel Stud Partition — 3 layers 5/8" Type C

Gypsum Association file SP2215 — 3-hour fire-rated steel stud partition. GA file SP2215: 3-5/8" steel studs at 24" o.c., 3 layers of 5/8" Type C gypsum board each side.

Cross-Section Diagram

12345675.25"WALL ASSEMBLYSECTION · NOT TO SCALE7 LAYERSsee legend for ① ② ③
Legend
15/8" Type C gypsum board(5/8")
25/8" Type C gypsum board(5/8")
35/8" Type C gypsum board(5/8")
43-5/8" steel studs at 24" o.c.
55/8" Type C gypsum board(5/8")
65/8" Type C gypsum board(5/8")
75/8" Type C gypsum board(5/8")

Specifications

Fire Rating
3-Hour
STC Rating
STC 34
Load Bearing
Yes
Total Thickness
7.51"
Source / Publisher
GA (Gypsum Association)
Design Number
SP2215
Assembly Type
Wall
Test Standard
ASTM E119
Construction Group
Light Frame
Number of Layers
7 layers

Applicable Codes

IBC 2021 Table 722.1IRC R302.1

Construction Summary

GA file SP2215: 3-5/8" steel studs at 24" o.c., 3 layers of 5/8" Type C gypsum board each side

Material Layers

LayerMaterialThickness
15/8" Type C gypsum board5/8"
25/8" Type C gypsum board5/8"
35/8" Type C gypsum board5/8"
43-5/8" steel studs at 24" o.c.—
55/8" Type C gypsum board5/8"
65/8" Type C gypsum board5/8"
75/8" Type C 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.