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Home / Assemblies / UL U270
UL U2701-hr Fire RatingWallSTC 47
Steel StudGypsum BoardResilient ChannelPartitionDesign

Steel Stud Wall — single layer 1/2" Type X on resilient channels

UL-listed 1-hour fire-rated steel stud wall assembly. 6" steel studs at 24" o.c., single layer of 1/2" Type X gypsum board each side on resilient channels.

Cross-Section Diagram

12347.88"WALL ASSEMBLYSECTION · NOT TO SCALE4 LAYERSsee legend for ① ② ③
Legend
11/2" Type X gypsum board(1/2")
2Resilient channels at 24" o.c.(7/8")
36" steel studs at 24" o.c.(6.0")
41/2" Type X gypsum board(1/2")

Specifications

Fire Rating
1-Hour
STC Rating
STC 47
Load Bearing
No
Total Thickness
7.875"
Source / Publisher
UL (Underwriters Laboratories)
Design Number
U270
Assembly Type
Wall
Test Standard
CAN/ULC-S101
Construction Group
Light Frame
Number of Layers
4 layers

Applicable Codes

IBC 2021 §722IBC 2024 §722IRC R302.1

Construction Summary

6" steel studs at 24" o.c., single layer of 1/2" Type X gypsum board each side on resilient channels

Material Layers

LayerMaterialThickness
11/2" Type X gypsum board1/2"
2Resilient channels at 24" o.c.7/8"
36" steel studs at 24" o.c.6.0"
41/2" Type X gypsum board1/2"

Important Notice

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