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Home / Assemblies / UL N144
UL N1444-hr Fire RatingBeamLoad-Bearing
Design

Concrete Beam — Gypsum board enclosure

UL-listed 4-hour fire-rated concrete beam assembly. Post-tensioned concrete beam with Gypsum board enclosure, 4-hour fire rating.

Cross-Section Diagram

12BEAM PROTECTIONSECTION · NOT TO SCALE2 LAYERSsee legend for ① ② ③
Legend
1Post-tensioned concrete beam(24")
2Gypsum board enclosure(2.19")

Specifications

Fire Rating
4-Hour
Load Bearing
Yes
Total Thickness
28.38"
Source / Publisher
UL (Underwriters Laboratories)
Design Number
N144
Assembly Type
Beam
Test Standard
UL 263
Construction Group
Concrete/Masonry
Number of Layers
2 layers

Applicable Codes

NFPA 5000IBC 2024 §722

Construction Summary

Post-tensioned concrete beam with Gypsum board enclosure, 4-hour fire rating

Material Layers

LayerMaterialThickness
1Post-tensioned concrete beam24"
2Gypsum board enclosure2.19"

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.