The Simpson 12x12 Column Base CB1212HDG Hot Dip Galvanized Post Base is a heavy-duty structural connector from Simpson engineered to create a secure, high-strength connection between 12 x 12 posts and concrete foundations. Compatible with lumber, glulam, and engineered wood products, this column base installs via cast-in-place or wet-set methods so the base plate sits flush with the concrete surface, enabling full post bearing. Built to handle demanding structural loads in exposed or corrosive environments, it is a dependable choice for both residential and commercial column base applications requiring superior uplift and lateral resistance.

Key Features

• Cast-in-place or wet-set installation - the base plate sets flush with the concrete surface, ensuring full post bearing and a clean, stable finished connection
• Compatible with lumber, glulam, and engineered wood products - gives builders and contractors flexibility across a wide range of 12 x 12 column materials without needing multiple connector types
• Hot Dip Galvanized finish - provides robust corrosion resistance for long-term performance in outdoor, exposed, or high-moisture environments
• High uplift and lateral load resistance - designed to handle wind- and seismic-load demands, making it suitable for high-load structural column applications
• American-made product from Simpson - built to the quality and consistency standards that structural contractors rely on for critical load-path connections

Why This Product

• Built for demanding structural applications - engineered to support high-load column connections in both residential and commercial construction, including wind- and seismic-load-resistant installations where performance cannot be compromised
• Long-term corrosion protection included - the Hot Dip Galvanized finish means this post base holds up in outdoor and exposed environments without requiring additional protective treatment
• Versatile material compatibility - works with lumber, glulam, and engineered wood post columns, reducing the need to source different hardware for different framing materials on the same job
• Flush-mount design maximizes bearing surface - the cast-in-place or wet-set installation method positions the base plate level with the concrete, delivering full post bearing and a structurally sound foundation connection

Specifications

• Manufacturer: Simpson Strong-Tie
• Manufacturer Part Number (MPN): CB1212HDG
• Nominal Column Size: 12 x 12
• Finish: Hot Dip Galvanized
• Fasteners Required: Bolts - (2) 5/8" (sold separately)
• Width 1: 11-1/2 in.
• Width 2: 11-1/2 in.
• Country of Origin: United States

Approved Applications

• Connecting structural posts to concrete foundations in residential and commercial construction
• Lumber, glulam, and engineered wood post column base connections
• High-load column applications requiring superior uplift resistance
• Wind- and seismic-load-resistant structural connections
• Outdoor or exposed environments where corrosion resistance is required
• Cast-in-place or wet-set concrete foundation installations

What's Included

• 1x Simpson Strong-Tie CB1212HDG Column Base
• Note: (2) 5/8" bolts required - not included

Options

• Contact us for Configurable Options and Special orders

Frequently Asked Questions

What post size is the CB1212HDG designed for?

The CB1212HDG is designed for use with 12 x 12 column sizes, and is compatible with a wide range of lumber, glulam, and engineered wood products of that dimension.

How is the CB1212HDG installed?

This column base is either cast-in-place or wet set into the concrete so that the bottom of the base plate sits flush with the concrete surface, allowing for full post bearing.

What fasteners are required for the CB1212HDG?

Two (2) 5/8" bolts are required for installation. These fasteners are not included with the column base and must be sourced separately.

What finish does the CB1212HDG have, and why does it matter?

The CB1212HDG features a Hot Dip Galvanized finish, which provides enhanced corrosion resistance, making it well-suited for outdoor, exposed, or high-moisture environments where long-term durability is essential.

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