The Simpson 6X Column Base from Simpson Strong-Tie is a heavy-duty connector engineered to create a secure, load-bearing connection between structural posts and concrete foundations. Designed for use with 6X lumber, glulam, and engineered wood products, this column base uses a cast-in-place or wet-set installation method so the base plate sits flush with the concrete surface, delivering full post bearing and reliable structural performance in both residential and commercial applications.

Key Features

• Cast-in-place or wet-set installation - the base plate sits flush with the concrete surface, ensuring full post bearing without gaps or shimming and simplifying the installation process
• Compatible with 6X lumber, glulam, and engineered wood products - gives builders flexibility to use a wide range of column materials without needing a different connector
• High structural values with wind and seismic uplift resistance - suitable for columns subject to demanding lateral and uplift load conditions in both residential and commercial construction
• Simpson Strong-Tie gray paint finish - provides a consistent, protective coating that helps resist corrosion in typical installation environments
• Secured with two 5/8 in. bolts - a straightforward, field-standard fastening method that keeps the post-to-foundation connection tight and code-ready

Why This Product

• Engineered for demanding load conditions - this column base is built to handle high structural loads including wind and seismic uplift forces, making it a dependable choice for projects where connection integrity is critical
• Flush-mount design eliminates bearing gaps - the wet-set installation positions the base plate level with the concrete surface, so the post bears fully and evenly from day one without additional leveling hardware
• Broad material compatibility - acceptance of lumber, glulam, and engineered wood columns in the 6X range means this connector works across a variety of structural framing systems without substitution
• Trusted Simpson Strong-Tie engineering - backed by a brand with a long-standing reputation in structural connectors, giving contractors and builders confidence in performance and code-compliance for post base applications

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: CB6-7
• Nominal Column Size: 6X
• Fasteners Required: Bolts - (2) 5/8" (sold separately)
• Finish: Simpson Strong-Tie gray paint
• Width 1: 5-1/2 in.
• Width 2: 7 in.

Approved Applications

• Connecting posts to concrete foundations in residential and commercial construction
• Structural column support using lumber, glulam, or engineered wood products
• Applications requiring high structural values with wind or seismic uplift resistance
• Cast-in-place or wet-set concrete installations requiring flush base plate bearing

What's Included

• 1x Simpson Strong-Tie CB6-7 Column Base
• Fasteners required: (2) 5/8" bolts (not included - must be sourced separately)

• 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 CB6-7 designed to fit?

The CB6-7 is designed for use with 6X column sizes, making it compatible with lumber, glulam, and engineered wood products in that dimension range.

How is the CB6-7 installed?

The CB6-7 is installed using a cast-in-place or wet-set method, meaning the base is set directly into concrete while it is still wet. This allows the base plate to sit flush with the concrete surface, ensuring full post bearing once the concrete cures.

What fasteners are required to secure the post to the CB6-7?

The CB6-7 requires two 5/8" bolts to connect the post to the column base. The bolt hole locations are positioned to meet code-required spacing for optimal load capacity.

Is the CB6-7 suitable for applications with wind or seismic loads?

Yes, the CB6-7 is engineered with increased uplift resistance, making it well suited for structural column applications subject to wind or seismic forces. It is designed to deliver high structural values under demanding load conditions in both residential and commercial construction.