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Home / Assemblies / UL G111
UL G1114-hr Fire RatingColumnLoad-Bearing
Design

Wood Column — Gypsum board enclosure

UL-listed 4-hour fire-rated wood column assembly. Solid sawn timber column with Gypsum board enclosure, 4-hour fire rating.

Cross-Section Diagram

12COLUMN PROTECTIONSECTION · NOT TO SCALE2 LAYERSsee legend for ① ② ③
Legend
1Solid sawn timber column(8")
2Gypsum board enclosure(2.5")

Specifications

Fire Rating
4-Hour
Load Bearing
Yes
Total Thickness
13"
Source / Publisher
UL (Underwriters Laboratories)
Design Number
G111
Assembly Type
Column
Test Standard
CAN/ULC-S101
Construction Group
Non-Combustible
Number of Layers
2 layers

Applicable Codes

NFPA 5000IBC 2021 §722

Construction Summary

Solid sawn timber column with Gypsum board enclosure, 4-hour fire rating

Material Layers

LayerMaterialThickness
1Solid sawn timber column8"
2Gypsum board enclosure2.5"

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.