The Simpson CB1212 Column Base is built to connect posts to concrete foundations across a wide range of lumber, glulam, and engineered wood product sizes. Fabricated from 3-gauge steel and finished in Simpson Strong-Tie gray paint, this heavy-duty column base is either cast-in-place or wet set into concrete, with the bottom of the base plate sitting flush with the concrete surface to ensure full post bearing. Engineered for column applications that demand high structural values and rugged performance, the CB1212 is a reliable anchoring solution for residential and commercial structural columns where a nominal 12x12 member is required.

Key Features

• Increased uplift resistance for wind or seismic loading - gives structural columns the holding power needed to meet code requirements in high-wind and earthquake-prone regions.
• Bolt hole locations meet code-required spacing for optimal capacity - simplifies the installation process and helps ensure the connection performs at its rated structural load.
• Cast-in-place or wet-set installation with flush base plate bearing - provides full post bearing contact at the concrete surface, maximizing load transfer and connection stability.
• Made from 3-gauge steel - the heavy material thickness delivers the rugged durability required for large-scale column applications subject to significant structural loads.
• Simpson Strong-Tie gray paint finish - provides a consistent, finished appearance suitable for exposed or semi-exposed post base installations.

Why This Product

• Built for demanding structural applications - 3-gauge steel construction and engineered bolt hole spacing combine to deliver the high structural values required for large nominal 12x12 column connections in both residential and commercial projects.
• Versatile compatibility across wood types - the CB1212 accommodates lumber, glulam, and engineered wood product columns of the same nominal size, reducing the need to source different hardware for different post materials on the same job.
• Designed to resist uplift, not just compression - the increased uplift resistance built into this column base makes it a dependable choice for post-to-foundation connections in regions subject to wind or seismic forces.
• Flexible concrete installation methods - cast-in-place or wet-set compatibility gives contractors and builders the freedom to work with the concrete placement method that best fits the project timeline and site conditions.

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: CB1212
• Nominal Column Size: 12x12
• Gauge: 3
• Coating / Finish: Simpson Strong-Tie Gray Paint
• Install With: (2) 3/4-in. diameter machine bolts (sold separately)
• Width 1: 11-1/2 in.
• Width 2: 11-1/2 in.

Approved Applications

• Connecting posts to concrete foundations in residential and commercial construction
• Compatible with lumber, glulam, and engineered wood product columns
• Cast-in-place or wet-set concrete installations requiring flush base plate bearing
• Structural column applications subject to wind or seismic uplift loading

What's Included

• 1x Simpson CB1212 Column Base
• Installs with (2) 3/4-in. diameter machine bolts (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 CB1212 designed for?

The CB1212 is designed for a nominal 12x12 member size and is compatible with lumber, glulam, and engineered wood product columns of that dimension.

How is the CB1212 installed into concrete?

The CB1212 can be either cast-in-place or wet set into concrete. In both methods, the bottom of the base plate sits flush with the concrete surface to ensure full post bearing. The column base is secured using two 3/4-in. diameter machine bolts, which are not included.

What material and finish is the CB1212 made from?

The CB1212 is made from 3-gauge steel and is finished in Simpson Strong-Tie gray paint, providing a durable coating suited for heavy-duty structural applications.

Is the CB1212 suitable for use in wind or seismic conditions?

Yes. The CB1212 features increased uplift resistance for wind or seismic loading, and its bolt hole locations meet code-required spacing for optimal load capacity, making it well suited for structural column applications subject to these forces.