The Simpson ECCLR666HDG L-Shape End Column Cap is a heavy-duty structural connector engineered for end-of-beam applications where two beams meet in an "L" formation on top of a column. Built specifically for nominal 6x main beam, 6x post, and 6x side beam configurations in a right-hand (skewed right) orientation, this column cap helps distribute load from intersecting beams and provides critical support at the connection point. Fabricated from 7-gauge steel with a hot-dip galvanized finish, it is well-suited for exterior structural assemblies and projects involving chemically treated lumber where enhanced corrosion resistance is required.

Key Features

• Assembled with certified welds - delivers verified strength and load capacity at the connection, giving builders confidence in structural integrity.
• Bolt spacing meets NDS code requirements - ensures the installation satisfies recognized structural design standards, reducing compliance concerns on permitted projects.
• Diamond holes for temporary fastening - allow the cap to be positioned and held in place during layout before final bolting, simplifying the installation process.
• Right-hand (skewed right) orientation - matches the specific geometry of right-side L-formation beam intersections; pair with the ECCLL when a left-hand version is needed instead.
• 7-gauge steel construction - provides a robust, heavy-duty base that holds up under demanding load conditions in commercial and residential structural framing.
• Hot-dip galvanized (HDG) coating - offers extra corrosion resistance compared to standard coatings, making it appropriate for exterior use and for contact with ACQ or other treated wood species.
• Sized for 6x main beam, 6x post, and 6x side beam members - fits nominal lumber dimensions precisely, eliminating the guesswork of adapting a general-purpose bracket to a specific structural plan.

Why This Product

• Purpose-built for L-formation end-of-beam connections - unlike generic column caps, the ECCL series is specifically designed for the geometry of two beams intersecting at the end of a run on top of a post, addressing a connection type that standard caps cannot cleanly handle.
• Hot-dip galvanization extends service life in harsh conditions - the HDG finish provides a higher level of corrosion protection than standard zinc plating, making this connector a dependable choice for open-air decks, pergolas, and other exterior structures exposed to moisture and treated lumber off-gassing.
• Certified welds and NDS-compliant bolt spacing reduce field uncertainty - the engineering is built into the product, so contractors can install with confidence that the connection meets code bolt-spacing requirements without additional calculation or modification.
• Accommodates many beam and post size combinations - Simpson column caps in the ECCL series are sized to suit a wide range of plan details, generally eliminating the need for additional brackets or braces at the connection point.

Specifications

• Manufacturer Part Number (MPN): ECCLR666HDG
• Product Series: ECCL
• Direction: Right (Skewed Right)
• Member Size: 6x main beam, 6x post, 6x side beam
• Material: Steel
• Gauge: 7-gauge
• Coating / Finish: Hot-Dip Galvanized (HDG)
• Install With: 5/8-in. diameter bolts
• Country of Origin: United States

Approved Applications

• End-of-beam column-to-beam connections where two beams meet in an "L" formation on top of a column
• Structural projects requiring load distribution from intersecting beams to a supporting post
• Exterior construction applications requiring enhanced corrosion resistance
• Applications involving ACQ or other chemically treated lumber, where hot-dip galvanized hardware is recommended
• Projects specifying nominal 6x main beam, 6x post, and 6x side beam member sizes

What's Included

• 1x Simpson Strong-Tie ECCLR666HDG L-Shape End Column Cap (Right), Hot-Dip Galvanized

Options

• Many combinations of beam and post sizes can be manufactured. Refer to worksheet Options for Multiple-Beam, Bolted Column Caps.
• Contact us for Configurable Options and Special orders
  
• The download shall be determined from the allowable loads for the unmodified product (see ECC column caps). The side beam can take a maximum of 40% of the download and shall not exceed 10,665 lb. The sum of the loads for the side beam(s) and main beam cannot exceed the table load.
• Uplift loads do not apply for ECCL caps.
• The column width in the direction of the main beam width must be the same as the main beam width (W1).
• Specify the stir

Frequently Asked Questions

What beam and post sizes is the ECCLR666HDG designed to fit?

This column cap is designed for nominal 6x main beam, 6x post, and 6x side beam configurations. It is sized specifically for end-of-beam applications where two beams intersect in an "L" formation on top of a column.

What fasteners are required to install this column cap?

The ECCLR666HDG should be installed with 5/8-in. diameter bolts. The bolt spacing is designed to meet NDS code requirements to ensure optimal performance.

Is this column cap suitable for exterior or treated-wood applications?

Yes. The ECCLR666HDG features hot-dip galvanization (HDG), which offers extra corrosion resistance, making it well suited for exterior environments and applications involving treated wood.

What is the difference between the ECCLR666HDG and the ECCLL version?

The ECCLR666HDG is a right-direction column cap, meaning the side beam extends to the right. If your project requires a left-direction configuration, you should order the ECCLL model instead.