The Simpson 4 x 4 Column Base, Hot-Dip Galvanized by Simpson is engineered to securely connect posts to concrete foundations across a wide range of lumber, glulam, and engineered wood product sizes. Cast-in-place or wet set into concrete, the base plate sits flush with the concrete surface to provide full post bearing, giving the column above a stable, code-compliant footing. Built from 7-gauge steel with a hot-dip galvanized finish, this column base is purpose-built for high structural values and rugged performance where long-term reliability is essential.

Key Features

• Increased uplift resistance for wind or seismic loading - helps the connection hold under the lateral and vertical forces that occur in high-wind or earthquake-prone regions, adding a critical margin of safety to structural columns.
• Bolt hole locations meet code-required spacing for optimal capacity - takes the guesswork out of fastener placement and helps ensure the connection performs at its rated load values without requiring field modifications.
• Cast-in-place or wet-set installation - two accepted installation methods give contractors flexibility on the jobsite while keeping the base plate flush with the concrete surface for full post bearing.
• Made from 7-gauge steel - the heavy-gauge construction provides the structural rigidity needed to support columns demanding high load capacity in both residential and commercial applications.
• Hot-dip galvanized finish - the HDG coating delivers extra corrosion resistance suited for exterior applications and direct contact with pressure-treated lumber, where standard coatings can degrade over time.

Why This Product

• Built for demanding structural applications - the combination of 7-gauge steel construction and a flush-bearing, cast-in-place or wet-set design makes this post base a reliable choice when columns require high structural values and rugged, long-term performance.
• Ready for exterior and treated-wood use - the hot-dip galvanized finish provides a level of corrosion resistance that goes beyond standard coatings, making this column base well suited for outdoor structures, decks, and any application involving treated wood products.
• Engineered for wind and seismic zones - increased uplift resistance and code-compliant bolt hole spacing mean this connector is designed to meet the demands of projects in high-wind or seismic areas, not just standard loading conditions.
• Compatible with a broad range of wood products - designed to work with dimensional lumber, glulam beams, and engineered wood products in nominal 4x4 sizing, giving builders and designers flexibility across a variety of column and post applications.

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: CB44HDG
• Nominal Column Size: 4x4
• Width 1: 3-9/16 in.
• Width 2: 3-9/16 in.
• Gauge: 7
• Coating: Hot-Dip Galvanized
• Finish: Hot-Dip Galvanized
• Install With: (2) 5/8-in. diameter HDG machine bolts (sold separately)
• Country of Origin: United States

Options

• Contact us for Configurable Options and Special orders

Frequently Asked Questions

What installation method is used for the CB44HDG column base?

The CB44HDG is designed to 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, providing full post bearing for the column above.

What type of posts and materials is the CB44HDG compatible with?

The CB44HDG is designed to connect a nominal 4x4 post to a concrete foundation and is compatible with a wide range of lumber, glulam, and engineered wood product sizes.

Why is hot-dip galvanization important for this column base?

Hot-dip galvanization (HDG) provides an extra layer of corrosion resistance, making the CB44HDG suitable for exterior applications and use with treated wood, where standard finishes may degrade over time.

What fasteners are required to install the CB44HDG?

Installation requires (2) 5/8-in. diameter HDG machine bolts. The bolt hole locations are positioned to meet code-required spacing for optimal load capacity.

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