The use of “Underwriters Laboratories” Fire Rated Concrete
Masonry Units is a necessity in all fire rated assemblies.

The use of “Underwriters Laboratories” Fire Rated Concrete
Masonry Units is a necessity in all fire rated assemblies.

The use of “Underwriters Laboratories” Fire Rated Concrete
Masonry Units is a necessity in all fire rated assemblies.

FIRE RATED

FIRE RATED

Unparalleled Innovation in the Masonry Industry.

Unparalleled Innovation in the Masonry Industry.

Unparalleled Innovation in the Masonry Industry.

Block Types

Block Types

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UL Fire-Rated

Unparalleled safety, without sacrificing aesthetics

Westbrook Block is a proud producer of Underwriters Laboratories® (UL®) Approved Fire-Rated CMU, both Light Weight and Normal Weight densities, in 2-, 3- and 4-hour configurations. Allowing for safe means of egress and a higher fire rating, these blocks should no longer be looked at as JUST standard grey CMU.

It is no longer necessary to sacrifice the aesthetics of the CMU for the UL® listing. Our UL® Fire-Rated CMU come in all of the amazing colors and finishes we pride ourselves on.

Because there are no apparent differences in appearance between a standard CMU and a UL® Fire-Rated CMU, Westbrook Block marks the inside core of each UL® Fire-Rated CMU with a raised “Frog.” In the event the design professional, building committee or local governing authority requires further assurance that the CMU used in fire walls are indeed Underwriters Laboratories® Fire-Rated, individual Fire-Rated CMU can be individually marked with the UL® logo. Additionally, a UL® Certificate is delivered to the job site so that the contractor can make it available to local building officials.

Westbrook Block prides itself on manufacturing UL® Fire-Rated CMU that can be integrated into the design assemblies pictured below. u901   x902   u904   u905   u906   u910   u912   u913   u914

*Underwriters Laboratories Inc. (UL) is an independent third party product safety testing and certification organization. UL has tested products for public safety for over a century. Each year more than 17 billion UL Marks are applied to products worldwide.

Westbrook Block UL License Number: R18597

UL Design Assemblies

Click on an assembly for a larger view. All assemblies are available as CAD, AI, or PDFs in our drawing detail database. Click here to access.

Sizes & Shapes

All blocks are available in Westbrook Block’s full range of colors and architectural finishes. Special shapes available on request, including bullnose, half block and more.

Finishes & Colors

Below is a sampling of the 300+ colors available – visit the color page for a more detailed look at available options.
Please contact us for more information: info@westbrookblock.com

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