The Simpson CBH Concealed Glulam Beam Hanger (2-3/8 in. x 5-1/2 in., Hot-Dip Galvanized) is engineered for glulam and engineered lumber assemblies where structural performance and clean architectural appearance must work together. Computer modeling and CNC manufacturing enables glulam to be delivered to the jobsite in precise lengths and with preinstalled concealed hangers, and the CBH is specifically designed for such applications. Installed with readily available Strong-Drive SDS Heavy-Duty Connector screws, it supports both joist-to-beam and joist-to-column connections while meeting demanding fire-resistance and drift requirements for exposed structural and fire-rated construction.

Key Features

• Fully concealed profile - hides the connector within the beam for architecturally exposed applications where visible hardware is not acceptable, while also contributing to fire-rated assembly performance
• 1-hr and 2-hr fire resistance ratings per ASTM E119 - allows use in fire-rated assemblies without requiring additional concealment measures, saving time and materials on compliant builds
• Inter-story drift performance tested to over 2% - confirms the connection can handle real-world lateral movement, supporting use in seismic and wind-load design scenarios
• +/- 1/32-in. beam length tolerance on each end - accommodates minor field variation in beam length so installers can fit components without cutting or shimming
• Multiple router options to suit jobsite needs - gives contractors flexibility in how the slot is prepared, reducing dependence on specialized tooling
• 3-gauge steel with hot-dip galvanized finish - the heavy steel gauge delivers robust load capacity, while hot-dip galvanization provides enhanced corrosion resistance for exterior and treated-wood applications
• Two-backplate assembly design - the kit includes both backplates that together form one complete connection, simplifying ordering and ensuring matched components on every installation
• Code-listed per ICC-ESR-2552 - provides the documentation engineers and inspectors need for plan review and permit approval without additional testing or justification

Why This Product

• Built for prefabricated glulam workflows - because the CBH is designed for beams delivered to the jobsite with hangers preinstalled, it fits directly into CNC-driven prefabrication processes and reduces field labor for concealed timber connections
• Dual-rated for aesthetics and fire compliance - achieving both 1-hr and 2-hr fire resistance ratings per ASTM E119 while remaining fully concealed means this single hanger satisfies architectural, structural, and code requirements in exposed fire-rated construction
• Corrosion resistance for demanding environments - the hot-dip galvanized finish goes beyond standard coatings, making this hanger a reliable choice for exterior glulam structures and assemblies involving pressure-treated lumber
• Versatile connection geometry - engineered to handle both joist-to-beam and joist-to-column applications, the CBH reduces the number of different connector types a contractor needs to stock for a multi-connection timber framing project

Specifications

• Manufacturer Part Number (MPN): CBH2.37X5.5H-KT
• Width: 2-3/8 in. (2.375 in.)
• Height: 5-1/2 in.
• Gauge: 3
• Coating: Hot-Dip Galvanized (HDG)
• Finish: Hot-Dip Galvanized
• Code Listing: ICC-ESR-2552
• Fire Resistance Rating: 1-hr and 2-hr per ASTM E119
• Inter-Story Drift: Tested to over 2%
• Country of Origin: United States

Approved Applications

• Joist to beam - connecting a joist to a glulam or engineered beam
• Joist to column - connecting a joist directly to a structural column
• Exterior and treated-wood applications where enhanced corrosion resistance is required (hot-dip galvanized finish)
• Architecturally exposed structural applications where a concealed connector is required for aesthetic purposes
• Fire-rated assemblies requiring 1-hr or 2-hr fire resistance per ASTM E119

What's Included

• (2) backplates - two backplates make up one complete connection
• Screws are not included. See installation requirements below.

Installation Hardware (sold separately)

The following Strong-Drive SDS Heavy-Duty Connector screws are required for installation:

• Joist-to-beam application: (13) Strong-Drive SDS25300 screws and (13) Strong-Drive SDS25600 screws
• Joist-to-column application: (26) Strong-Drive SDS25600 screws

Frequently Asked Questions

What screws are required to install the CBH2.37X5.5H-KT?

The required fasteners depend on the application. For a joist-to-beam application, use (13) Strong-Drive SDS25300 screws and (13) Strong-Drive SDS25600 screws. For a joist-to-column application, use (26) Strong-Drive SDS25600 screws. Note that screws are not included with the hanger kit - the package includes only the two backplates that make up one complete connection.

Does this hanger meet fire resistance requirements?

Yes. The CBH2.37X5.5H-KT has achieved both 1-hour and 2-hour fire resistance ratings tested according to ASTM E119. Its concealed design contributes to this fire-rated performance, making it suitable for applications where fire resistance is required.

Is this hanger suitable for exterior or treated-wood applications?

Yes. The CBH2.37X5.5H-KT is manufactured from 3-gauge steel with a hot-dip galvanized (HDG) finish, which provides extra corrosion resistance. This makes it appropriate for exterior applications and use with treated wood where enhanced protection against corrosion is needed.

What code listings apply to this product, and what are its key dimensions?

The CBH2.37X5.5H-KT is code-listed per ICC-ESR-2552. It measures 2-3/8 in. wide by 5-1/2 in. tall. Additionally, its +/- 1/32-in. beam length tolerance on each end provides flexibility during installation, and inter-story drift performance has been tested to over 2%.