The Simpson ECC5 1/4-5 1/4 End Column Cap is an engineered structural connector from Simpson designed to create strong, code-compliant column-to-beam connections at end-of-beam positions in wood construction. Purpose-built for 5-1/8 in. beams and 5-1/8 in. posts, this end column cap features a seat that extends beyond one side of the column, increasing the bearing surface area to effectively distribute beam loads at the connection point. With certified welds and enhanced uplift resistance for both earthquake and wind loading, this connector is a dependable choice for demanding structural applications where load transfer integrity is non-negotiable.

Key Features

• End-of-Beam Column Cap Design - The seat extends beyond one side of the column, providing an expanded bearing surface that distributes beam loads efficiently and supports structural integrity at end-of-beam connections.
• Certified Welds - Factory-certified weld quality gives builders and engineers confidence in rated load capacity, reducing uncertainty during inspection and approval processes.
• Increased Uplift Resistance - Enhanced uplift load ratings for both earthquake and wind loading conditions help this connector perform in high-demand environments where lateral and vertical forces are a primary concern.
• NDS Code-Compliant Bolt Spacing - Designed to meet National Design Specification bolt spacing requirements, simplifying compliance verification on permitted structural projects.
• Heavy-Gauge Construction with Protective Finish - Built from 3 gauge steel with a Simpson Strong-Tie gray paint finish, the connector delivers the structural mass and corrosion resistance expected in lasting wood-frame construction.
• Precision Fit for Engineered Lumber - Specifically sized for 5-1/8 in. beams and 5-1/8 in. posts, including glulam and engineered lumber members, ensuring a proper, secure fit without field modification.

Why This Product

• Built for Structural Confidence at End-of-Beam Positions - The extended seat design addresses the unique load-distribution challenges of end-of-beam connections, giving builders a connector engineered specifically for that application rather than a general-purpose alternative.
• Certified Weld Strength You Can Count On - Certified welds mean the connection's integrity has been verified at the manufacturing level, supporting smoother inspections and greater accountability on structural projects.
• Engineered for High-Force Environments - With uplift performance rated for both earthquake and wind loading, this end column cap is suited to regions and applications where lateral force resistance is a code and safety priority.
• American-Made Quality - Produced in the United States, this connector reflects the manufacturing standards that structural professionals and building inspectors expect from a trusted connector brand.

Specifications

• Model Number: ECC5 1/4-5 1/4
• Description: 5-1/8" Beam, 5-1/8X Post End Column Cap
• Material: 3 gauge
• Finish: Simpson Strong-Tie gray paint
• Fasteners Required - Beam: 3/4" Machine Bolts (2)
• Fasteners Required - Post: 3/4" Machine Bolts (2)
• Country of Origin: United States

Approved Applications

• End-of-beam column-to-beam connections in wood construction
• Structural connections requiring certified weld strength and load distribution
• Applications demanding increased uplift resistance due to earthquake loading
• Applications demanding increased uplift resistance due to wind loading
• Wood construction projects requiring NDS code-compliant bolt spacing

Options

• Contact us for Configurable Options and Special orders
• Straps may be rotated 90 deg. (see SPECS)
• For special, custom or rough-cut lumber sizes, provide dimensions. An optional W2 dimension may be specified. (The W2 dimension on straps rotated 90 deg. is limited by the W1 dimension.)

Note: Product dimensions may differ from picture.

Frequently Asked Questions

What beam and post sizes is the ECC5 1/4-5 1/4 designed to fit?

This end column cap is purpose-built for use with 5-1/8" beams and 5-1/8" posts, making it specifically suited to glulam or engineered lumber members of those dimensions.

What fasteners are required to install the ECC5 1/4-5 1/4?

Installation requires two 3/4" machine bolts for the beam connection and two 3/4" machine bolts for the post connection, for a total of four 3/4" machine bolts.

What features make this connector suitable for use in high-wind or seismic zones?

The ECC5 1/4-5 1/4 includes enhanced uplift resistance with uplift loads increased for earthquake or wind loading, certified welds for confirmed strength, and bolt spacing that meets NDS code requirements - all of which contribute to reliable performance in demanding structural conditions.

What material and finish does the ECC5 1/4-5 1/4 have?

The connector is made from 3 gauge steel and finished with Simpson Strong-Tie gray paint, providing a durable surface suitable for typical wood construction environments.