The Simpson LCC5.25-3.5 Column Cap is a Simpson engineered structural connector designed specifically to be welded to the lally column and attach to the girder, delivering a higher-capacity column-to-beam connection for new construction or replacement applications. Side plates capture the beam, enabling a safer installation process than standard cap plates - making this connector a reliable choice for residential and light commercial beam support projects where a secure, precise fit matters.

Key Features

• Fits over the column for precise positioning before welding - eliminates guesswork during placement and ensures a properly aligned, structurally sound connection every time.
• Side plates capture the beam during installation - provides a safer, more controlled process compared to standard cap plates, reducing the risk of shifting or misalignment.
• Adequate bearing length for larger girder reactions - supports the heavier load demands common with engineered lumber beams such as LVL, PSL, and LSL members.
• Sized specifically for 3-1/2 in. outside diameter lally columns - purpose-built fit means no guesswork about compatibility with standard round steel columns.
• Accepts 5.25 in. LVL/PSL/LSL engineered beams - matched seat width supports the wider, higher-capacity girders increasingly common in modern framing.
• Constructed from 12-gauge steel - provides the structural rigidity and load-bearing integrity expected in a primary column-to-beam connection.
• Simpson Strong-Tie gray paint finish - offers durability and corrosion resistance suitable for typical structural applications.

Why This Product

• Purpose-built for lally column applications - unlike generic cap plates, this connector is engineered specifically for round steel lally columns, so the fit, weld positioning, and load path are optimized from the start rather than improvised.
• Safer installation by design - the side-plate capture system keeps the beam seated and controlled during fastening, reducing the hazards associated with unsupported beams that standard cap plates do not address.
• Handles demanding engineered lumber loads - the seat width and bearing length are calibrated for the larger girder reactions that come with LVL, PSL, and LSL beams, so the connection keeps pace with the capacity of the beams it supports.
• Equally suited for new builds and replacement work - the cap slides over the existing or new column for repeatable, accurate positioning, making it a practical solution whether you are framing fresh or upgrading an aging column-to-girder connection.

Specifications

• Model Number: LCC5.25-3.5
• Gauge: 12
• Seat Width: 5-3/8 in.
• Lally Column Outside Diameter: 3-1/2 in.
• Member Size: 5.25 in. LVL/PSL/LSL
• Coating/Finish: Simpson Strong-Tie Gray Paint
• Install With: 0.162 in. x 3-1/2 in. nails (sold separately)
• Country of Origin: United States

Frequently Asked Questions

What size lally column is this cap compatible with?

This column cap is designed specifically to work with lally columns that have a 3-1/2 in. outside diameter.

What type of beam or girder is this column cap intended for?

The LCC5.25-3.5 is designed for use with 5.25 in. LVL/PSL/LSL engineered lumber beams and girders.

How is this column cap installed?

The cap fits over the lally column for precise positioning and is then welded to the column. It attaches to the girder using 0.162 in. x 3-1/2 in. nails. The side plates capture the beam, enabling a safer installation process than standard cap plates.

What material and finish is the LCC5.25-3.5 made from?

This column cap is made from 12-gauge steel and features a Simpson Strong-Tie gray paint finish for durability and corrosion resistance in typical structural applications.

Note: Product dimensions and/or screw or bolt holes may differ from picture. Please see item description for specifications.