The Simpson Strong-Tie CB7 1/8-4 Column Base is a heavy-duty structural connector engineered to securely connect PSL 7-1/8" x 4" posts to concrete foundations. Designed for cast-in-place or wet-set installation, this column base positions the bottom of the base plate flush with the concrete surface, ensuring full post bearing and maximum load transfer. Finished in Simpson Strong-Tie gray paint and manufactured in the United States, the CB7 1/8-4 delivers the high structural values and rugged performance demanded by residential, commercial, and industrial construction applications involving lumber, glulam, and engineered wood products.

Key Features

• Engineered specifically for PSL 7-1/8" x 4" column sizes for a precise, secure fit
• Cast-in-place or wet-set installation with base plate sitting flush with concrete for full post bearing
• Increased uplift resistance for wind or seismic loading
• Bolt hole locations meet code-required spacing for optimal capacity
• Ideal for columns requiring high structural values and rugged performance
• Compatible with lumber, glulam, and engineered wood product column sizes
• Finished in Simpson Strong-Tie gray paint for durability
• Manufactured in the United States

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: CB7 1/8-4
• Column Size: PSL 7-1/8" x 4"
• Finish: Simpson Strong-Tie gray paint
• Fasteners Required: Bolts - (2) 5/8"
• Country of Origin: United States

Approved Applications

• Connecting posts to concrete foundations in structural construction
• Use with lumber, glulam, and engineered wood product column sizes
• Applications requiring increased uplift resistance under wind or seismic loading
• Projects demanding high structural values and code-compliant bolt hole spacing
• Cast-in-place or wet-set concrete foundation connections

What's Included

• 1x Simpson Strong-Tie CB7 1/8-4 Column Base
• Note: Fasteners (2) 5/8" bolts required - not included

• Contact us for Configurable Options and Special orders

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

Frequently Asked Questions

What column size is the CB7 1/8-4 designed for?

The CB7 1/8-4 is engineered specifically for PSL 7-1/8" x 4" column sizes, providing a precise, secure fit for lumber, glulam, and engineered wood product columns of that dimension.

How is the CB7 1/8-4 installed?

The CB7 1/8-4 is designed for cast-in-place or wet-set installation into concrete. The base plate sits flush with the concrete surface, ensuring full post bearing and maximum load transfer to the foundation.

What fasteners are required to install the CB7 1/8-4?

Installation requires two 5/8" bolts. The bolt hole locations are designed to meet code-required spacing for optimal load capacity.

Is the CB7 1/8-4 suitable for high-wind or seismic applications?

Yes. The CB7 1/8-4 features increased uplift resistance, making it well suited for structural applications subject to wind or seismic loading, including residential, commercial, and industrial construction.