The Simpson ECC5 1/4-6 End Column Cap is engineered to deliver strong, reliable column-to-beam connections in end-of-beam applications in wood construction. The seat of the column cap provides an additional bearing surface that extends beyond one side of the column, helping to distribute the load from the beam and provide critical support for the connection. Fabricated from heavy-duty 3-gauge steel with certified welds and a Simpson Strong-Tie gray paint finish, this end column cap is designed for use with a 5-1/8 in. wide beam and a nominal 6x post - making it a proven choice for structural wood framing projects where load transfer, uplift resistance, and code compliance are non-negotiable.

Key Features

• Certified welds - deliver verified strength and load capacity, giving you confidence in the integrity of every connection.
• Increased uplift load ratings - engineered to handle elevated forces from earthquake or wind loading, adding a critical layer of protection for structures in high-demand environments.
• NDS code-compliant bolt spacing - meets National Design Specification requirements out of the box, helping ensure your installation passes inspection without guesswork.
• Diamond holes for temporary fastening - allow you to hold the cap in position during layout and alignment before final bolting, streamlining the installation process.
• 3-gauge steel construction - provides heavy-duty structural performance suited to demanding post-and-beam framing applications.
• Simpson Strong-Tie gray paint finish - offers a consistent, clean appearance while providing a protective coating across the connector.

Why This Product

• Purpose-built for end-of-beam column connections - the ECC5 1/4-6 is specifically designed for end-of-beam applications where one side of the column seat extends beyond the column, addressing a load distribution challenge that standard column caps are not intended to solve.
• Heavy-gauge steel with certified welds - the combination of 3-gauge steel and certified weld construction means load-bearing performance is verified, not assumed, giving contractors and engineers a connector they can specify with confidence.
• Uplift resistance engineered for seismic and wind zones - with uplift loads increased for earthquake and wind loading, this cap is suited for projects in regions where lateral and uplift forces are a primary structural concern.
• Designed for a precise member pairing - matching a 5-1/8 in. beam with a nominal 6x post, this cap fits common engineered lumber and timber framing configurations, reducing the need for field modifications or custom solutions.

Specifications

• Model Number: ECC5 1/4-6
• Member Size: 5-1/8 in. beam, 6x post
• Beam Width: 5-1/8 in.
• Length: 10-1/2 in.
• Width 1: 5-1/4 in.
• Width 2: 5-1/2 in.
• Height 1: 8-1/8 in.
• Nominal Post Size: 6x
• Material / Gauge: 3-gauge steel
• Finish / Coating: Simpson Strong-Tie Gray Paint
• Install With: (4) 3/4 in. diameter machine bolts
• Country of Origin: United States

Approved Applications

• End-of-beam column-to-beam connections in wood construction
• Structural applications requiring load distribution from beam to column
• Projects requiring increased uplift resistance for earthquake or wind loading
• Installations where NDS code-compliant bolt spacing is required
• Applications utilizing a 5-1/8 in. wide beam paired with a nominal 6x post

What's Included

• 1x Simpson ECC5 1/4-6 End Column Cap
• Note: Install with (4) 3/4 in. diameter machine bolts (sold separately)

Options

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

Frequently Asked Questions

What beam and post sizes is the ECC5 1/4-6 designed to fit?

The ECC5 1/4-6 is designed for use with a 5-1/8 in. wide beam and a nominal 6x post, making it specific to end-of-beam column-to-beam connections in wood construction where those member sizes are used.

What fasteners are required to install the ECC5 1/4-6?

Installation requires four 3/4 in. diameter machine bolts. The bolt spacing is designed to meet NDS code requirements to ensure optimal structural performance.

What material and finish is used on the ECC5 1/4-6?

The ECC5 1/4-6 is made from heavy-duty 3-gauge steel with certified welds and is finished with a Simpson Strong-Tie gray paint coating for durability and corrosion resistance.

Is the ECC5 1/4-6 suitable for use in high-wind or seismic applications?

Yes. The ECC5 1/4-6 features increased uplift loads specifically to accommodate earthquake and wind loading conditions, making it appropriate for structural connections where enhanced uplift resistance is required.