The Simpson Strong-Tie ECCO5 1/4 End Column Cap is an engineered structural connector designed to deliver strong, reliable column-to-beam connections in end-of-beam applications atop steel members. Engineered without legs, this column cap is purpose-built for field-welded attachment to steel columns and beams, offering a clean, high-strength connection solution for demanding structural environments. The generously proportioned seat extends beyond one side of the column, providing additional bearing surface area that effectively distributes beam loads and reinforces the integrity of the connection. Manufactured from heavy-duty 3-gauge steel and finished in Simpson Strong-Tie Gray paint, the ECCO5 1/4 is built to perform in structural applications where load transfer, uplift resistance, and code compliance are critical.

Key Features

• Legs-Omitted Design: Enables direct field-welded attachment to steel columns and beams for streamlined installation and a clean structural profile.
• Extended Seat Bearing Surface: The seat extends beyond one side of the column to distribute beam loads more effectively and provide enhanced connection support.
• Increased Uplift Load Capacity: Uplift loads are increased to address earthquake or wind loading demands in high-performance structural applications.
• NDS-Compliant Bolt Spacing: Bolt spacing meets NDS code requirements to ensure optimal structural performance and code-compliant installations.
• Diamond Holes: Included diamond holes allow for temporary fastening during installation, simplifying the assembly process.
• Heavy-Gauge Steel Construction: Fabricated from 3-gauge steel for exceptional strength and durability in structural steel framing applications.
• Simpson Strong-Tie Gray Paint Finish: Factory-applied gray paint finish provides surface protection and a professional appearance.

Specifications

• Model Number: ECCO5 1/4
• Manufacturer Part Number (MPN): ECCO5 1/4
• Beam Width: 5-1/8 in.
• Dimension W1: 5-1/4 in.
• Dimension L: 10-1/2 in.
• Dimension H1: 8-1/8 in.
• Material: 3-Gauge Steel
• Finish: Simpson Strong-Tie Gray Paint
• Country of Origin: United States

Approved Applications

• End-of-beam column-to-beam connections on top of steel members
• Field-welded connections to steel columns and beams (legs-omitted configuration)
• Structural framing applications requiring increased uplift resistance for earthquake or wind loading
• Connections involving engineered wood beams - contact engineered wood manufacturers for specific connection guidance
• Applications where NDS-compliant bolt spacing is required for structural performance

Installation

• Use all specified fasteners for the connection as required by the project design.
• Bolt holes shall be a minimum of 1/32" to a maximum of 1/16" larger than the bolt diameter (per 2018 NDS, section 12.1.3.2).
• Bolt holes should be drilled from one side all the way through the beam to maintain hole tolerances.
• Contact engineered wood manufacturers for connections involving engineered wood products.
• Welding to steel columns and beams shall be performed by a qualified designer or engineer.

Options

• Contact us for Configurable Options and Special orders
• For special, custom, or rough-cut lumber sizes, provide dimensions.

Frequently Asked Questions

What does "legs omitted" mean for the ECCO5 1/4, and how does it affect installation?

The legs-omitted design means the column cap does not include the typical leg extensions found on standard column caps. This configuration is purpose-built for field-welded attachment directly to steel columns and beams, resulting in a streamlined installation process and a clean structural profile at the connection point.

What size beam is the ECCO5 1/4 designed to accommodate?

The ECCO5 1/4 is designed for use with 5-1/8" beam legs, making it suitable for structural applications involving beams of that specific dimension.

What material and finish is used on the ECCO5 1/4?

The ECCO5 1/4 is manufactured from heavy-duty 3-gauge steel and finished in Simpson Strong-Tie Gray paint, providing a durable construction suited for demanding structural environments.

What design features help this column cap perform in high-load or seismic conditions?

The ECCO5 1/4 features an extended seat that reaches beyond one side of the column to distribute beam loads more effectively, increased uplift load capacity to address earthquake and wind loading demands, NDS-compliant bolt spacing for code-compliant structural performance, and diamond holes that allow for temporary positioning during installation.