The Simpson Strong-Tie ECCQ5-8SDS2.5 is a heavy-duty end column cap engineered to deliver reliable column-to-beam connections in end-of-beam wood construction applications. Designed for a 5-1/8" beam width and compatible with 8x post ends, this column cap features an extended seat that reaches beyond the side of the column to increase the bearing surface area, helping to effectively distribute loads from the beam while providing superior support at the connection point. Constructed from 3-gauge steel with a Simpson Strong-Tie Gray paint finish and supplied complete with Strong-Drive SDS Heavy-Duty Connector screws, the ECCQ5-8SDS2.5 combines structural confidence with straightforward installation.

Key Features

• Extended seat bearing surface distributes load from the beam and provides additional support beyond the side of the column
• Utilizes Strong-Drive SDS Heavy-Duty Connector screws for fast, efficient installation
• SDS screws attach to a greater net section area of the column compared to standard bolt attachment
• Low-profile SDS screws eliminate the need for standard through bolts, reducing overall connector profile
• Certified welds deliver confidence in strength and load-carrying capacity
• Increased uplift load values engineered to address earthquake and wind loading demands
• Diamond holes included for convenient temporary fastening during installation
• Made in the United States

Specifications

• Model Number: ECCQ5-8SDS2.5
• Beam Width: 5-1/8 in.
• Width W1: 5-1/4 in.
• Width W2: 7-1/2 in.
• Length (L): 8-1/2 in.
• Height (H): 7 in.
• Material: 3-Gauge Steel
• Finish: Simpson Strong-Tie Gray Paint
• Fastener Size Included: 1/4" x 2-1/2" Strong-Drive SDS Heavy-Duty Connector Screws
• Country of Origin: United States

Approved Applications

• End-of-beam column-to-beam connections in wood construction
• Structural connections requiring certified weld strength and increased uplift load capacity
• Applications subject to earthquake or high wind loading where enhanced uplift resistance is required
• 8x post end connections with 5-1/8" engineered or dimensional lumber beams

What's Included

• 1 x ECCQ5-8SDS2.5 End Column Cap
• 14 x 1/4" x 2-1/2" Strong-Drive SDS Heavy-Duty Connector Screws (Beam)
• 14 x 1/4" x 2-1/2" Strong-Drive SDS Heavy-Duty Connector Screws (Post)

Installation

Fasten with 1/4" x 2 1/2" Strong-Drive SDS Heavy-Duty Connector screws, which are provided with the column cap. (Lag screws will not achieve the same load.)

Options

• Contact us for Configurable Options and Special orders

Frequently Asked Questions

What beam width and post size is the ECCQ5-8SDS2.5 designed for?

The ECCQ5-8SDS2.5 is designed for a 5-1/8 in. beam width and is compatible with 8x post ends, making it suitable for end-of-beam wood construction applications where those dimensions are required.

What fasteners are included with this column cap, and why are they preferred over standard bolts?

This column cap comes supplied with Strong-Drive SDS Heavy-Duty Connector screws. These screws attach to a greater net section area of the column compared to standard bolt attachment, and their low-profile design eliminates the need for standard through bolts, reducing the overall connector profile and simplifying installation.

How does the extended seat on this column cap benefit the connection?

The extended seat reaches beyond the side of the column to increase the bearing surface area, helping to effectively distribute loads from the beam while providing additional support at the connection point beyond the side of the column.

Is this column cap engineered to handle earthquake and wind loading demands?

Yes, the ECCQ5-8SDS2.5 features increased uplift load values that are specifically engineered to address earthquake and wind loading demands, providing added structural confidence in applications where these forces are a concern.