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Home / Assemblies / UL G121
UL G1212-hr Fire RatingColumnLoad-Bearing
Design

Wood Column — Fire-retardant treated wood cladding

UL-listed 2-hour fire-rated wood column assembly. Glulam column with Fire-retardant treated wood cladding, 2-hour fire rating.

Cross-Section Diagram

12COLUMN PROTECTIONSECTION · NOT TO SCALE2 LAYERSsee legend for ① ② ③
Legend
1Glulam column(8")
2Fire-retardant treated wood cladding(3.0")

Specifications

Fire Rating
2-Hour
Load Bearing
Yes
Total Thickness
14"
Source / Publisher
UL (Underwriters Laboratories)
Design Number
G121
Assembly Type
Column
Test Standard
ASTM E119
Construction Group
Non-Combustible
Number of Layers
2 layers

Applicable Codes

IBC 2021 §722IBC 2024 §722

Construction Summary

Glulam column with Fire-retardant treated wood cladding, 2-hour fire rating

Material Layers

LayerMaterialThickness
1Glulam column8"
2Fire-retardant treated wood cladding3.0"

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.