The Simpson ECC3 1/4-4 End Column Cap is a heavy-duty steel connector from Simpson engineered for reliable column-to-beam connections at end-of-beam locations in structural wood construction. Built to work with a 3-1/8 in. beam and a 4X post, this end column cap uses an extended seat design to distribute load effectively at critical connection points, making it a dependable choice for decks, pergolas, covered structures, and similar timber framing applications where beam-end support is essential.

Key Features

• Extended seat design - provides additional bearing surface area beyond one side of the column, distributing load more effectively at end-of-beam connection points for a structurally sound result
• Certified welds - give buyers confidence that every weld meets recognized strength and load standards, reducing concern about connection integrity under real-world conditions
• Increased uplift load capacity - the connector is rated for elevated uplift demands, making it suitable for structures in earthquake-prone or high-wind regions where code compliance is critical
• Bolt spacing meets NDS code requirements - takes the guesswork out of fastener placement and helps ensure the finished connection passes inspection without modification
• Diamond holes included - allow temporary fastening during installation, keeping components aligned and making the assembly process more manageable for installers
• 7 gauge steel construction with Simpson Strong-Tie gray paint finish - delivers a robust, durable connector that resists the stresses of structural loading and holds up in demanding job-site conditions

Why This Product

• Purpose-built fit for a 3-1/8 in. beam and 4X post - eliminates the need to adapt a generic connector, ensuring the hardware matches the lumber dimensions exactly and the connection performs as intended from day one
• Engineered for seismic and high-wind performance - increased uplift load ratings mean this end column cap is a responsible choice for any structure where lateral forces and uplift are a design consideration, not just an afterthought
• Code-compliant by design - NDS-compliant bolt spacing and certified welds mean builders spend less time verifying compliance and more time completing the project with confidence
• Made in the United States by Simpson - the connector is domestically produced and carries the quality standards that the Simpson name is associated with in professional wood construction

Specifications

• Model Number: ECC3 1/4-4
• Description: 3-1/8" Beam, 4X Post End Column Cap
• Material: 7 gauge
• Finish: Simpson Strong-Tie gray paint
• Fasteners Required: 5/8" Machine Bolts - Beam (2), Post (2)
• Length: 7-1/2 in.
• Width 1: 3-1/4 in.
• Width 2: 3-5/8 in.
• Height 1: 6-1/2 in.
• Country of Origin: United States

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.)

Frequently Asked Questions

What size beam and post is the ECC3 1/4-4 designed for?

The ECC3 1/4-4 is specifically designed for use with a 3-1/8" beam and a 4X post, making it ideal for end-of-beam column cap applications in wood construction where those lumber dimensions are specified.

What fasteners are required to install the ECC3 1/4-4?

Installation requires 5/8" machine bolts - two for the beam connection and two for the post connection. The bolt spacing is designed to meet NDS code requirements for optimal structural performance.

What material and finish is used on the ECC3 1/4-4?

The ECC3 1/4-4 is constructed from 7 gauge steel and finished with Simpson Strong-Tie gray paint, providing a robust and durable connector suitable for structural wood construction applications.

Is the ECC3 1/4-4 rated for seismic or high-wind conditions?

Yes. The ECC3 1/4-4 features increased uplift load ratings designed to perform in earthquake or high-wind loading conditions, and its certified welds provide added confidence in strength under these demanding scenarios.

Note: Product dimensions may differ from picture.