The Simpson 8-3/4 in. Beam, 4x Post End Column Cap with SDS Screws is a heavy-duty Simpson connector engineered to create strong, reliable column-to-beam connections in end-of-beam applications within wood construction. Its extended seat design distributes beam loads across a greater bearing surface area beyond the column side, while the included Strong-Drive SDS Heavy-Duty Connector screws allow for fast, high-strength installation with a lower profile than traditional through bolts - making this cap a practical choice for structural post-and-beam framing projects.

Key Features

• End-of-beam column cap configuration - purpose-built for end-of-beam applications, so the connector performs correctly where a beam terminates over a post rather than at a midpoint connection.
• Extended seat bearing surface - distributes the load from the beam across a larger area beyond the column side, reducing stress concentration and improving overall connection performance.
• Compatible with 4x posts and an 8-3/4 in. beam width - sized to match common structural lumber dimensions, ensuring a proper fit without field modification.
• Strong-Drive SDS Heavy-Duty Connector screws included - all fasteners needed for a complete standard installation are included in the package, eliminating the need for a separate fastener purchase and speeding up the job.
• Lower-profile fastener installation - SDS screws attach to a greater net section area of the column than a typical bolt connection, delivering efficient load transfer with a cleaner, less obtrusive finished appearance.
• 3-gauge steel construction with Simpson gray paint finish - the heavy-gauge steel provides structural rigidity suited to load-bearing applications, while the painted finish offers a consistent, professional look.
• Made in the United States - domestically produced to Simpson quality standards, supporting confidence in material and manufacturing consistency.

Why This Product

• Everything needed for installation is included - with 28 Strong-Drive SDS Heavy-Duty Connector screws packaged with the cap (14 for the beam, 14 for the post), contractors and builders can go straight to work without sourcing separate fasteners.
• Engineered specifically for end-of-beam post connections - unlike general-purpose column caps, this connector is designed around end-of-beam geometry, so structural loads are transferred correctly at the termination point of the beam.
• SDS screw attachment improves on traditional bolted connections - the screws engage a greater net section area of the column compared to through-bolt attachment, meaning the connection is both structurally efficient and easier to install in tight framing conditions.
• Heavy-gauge steel at a precise fit - 3-gauge steel construction paired with dimensions matched to an 8-3/4 in. beam and 4x post means no guesswork on sizing, and the connector can carry the loads typical of post-and-beam structural framing.

Specifications

• Model Number: ECCQ94SDS2.5
• Beam Width: 8-3/4 in.
• Width 2: 3-5/8 in.
• Width 1: 8-7/8 in.
• Height: 7 in.
• Length: 8-1/2 in.
• Dimension W1: 8-7/8 in.
• Dimension W2: 3-5/8 in.
• Dimension L: 8-1/2 in.
• Dimension H: 7 in.
• Material: 3-gauge Steel
• Finish: Simpson Strong-Tie Gray paint
• Compatible Post Size: 4x
• Country of Origin: United States

What's Included

• 14 - 1/4" x 2-1/2" Strong-Drive SDS Heavy-Duty Connector screws for beam attachment
• 14 - 1/4" x 2-1/2" Strong-Drive SDS Heavy-Duty Connector screws for post attachment

Options

• Contact us for Configurable Options and Special orders
  
• Straps may be rotated 90 deg.
  

Frequently Asked Questions

What type of fasteners are used with the ECCQ94SDS2.5, and are they included?

This column cap is installed using 1/4" x 2-1/2" Strong-Drive SDS Heavy-Duty Connector screws. A total of 28 screws are included with the product - 14 for the beam connection and 14 for the post connection - so no additional fastener purchase is required for standard installation.

Why are SDS screws preferred over standard through bolts for this application?

The Strong-Drive SDS Heavy-Duty Connector screws provide a lower profile than standard through bolts and attach to a greater net section area of the column than a bolt attachment normally entails, resulting in a cleaner installation and strong, efficient load transfer.

What beam width is the ECCQ94SDS2.5 designed to accommodate?

This column cap is specifically designed for an 8-3/4 in. beam width. Key dimensions include a W1 of 8-7/8 in., W2 of 3-5/8 in., length of 8-1/2 in., and height of 7 in., making it suited for heavy timber framing applications using a 4x post.

Is the ECCQ94SDS2.5 rated for seismic or high-wind conditions?

Yes. Uplift loads for the ECCQ have been increased to address earthquake and wind loading requirements, and the column cap features certified welds for added confidence in strength. The diamond holes also allow for temporary fastening during installation, helping ensure proper alignment before final fastening.

Note: Product dimensions and/or Screw or Bolt holes may differ from picture.