Simpson CB44R CB Galvanized Column Base for 4x4 Rough is engineered by Simpson to securely connect posts to concrete foundations across a wide range of lumber, glulam, and engineered wood product applications. Designed for either cast-in-place or wet-set installation, the base plate sits flush with the concrete surface to provide full post bearing - ensuring a stable, load-ready connection from the ground up. Built from 7-gauge steel with a G90 galvanized finish, this column base delivers high structural values and rugged, long-lasting performance, making it the ideal choice for columns subject to demanding load conditions including wind and seismic forces.

Key Features

• Increased uplift resistance for wind or seismic loading - keeps your post-to-foundation connection secure under the lateral and uplift forces most likely to compromise structural integrity in high-load environments.
• Bolt hole locations meet code-required spacing for optimal capacity - takes the guesswork out of fastener placement and helps ensure your installation meets structural code requirements right from the start.
• Sized for a 4x4 rough nominal column - provides a precise, engineered fit for rough-sawn lumber, glulam, and engineered wood products at this dimension, reducing on-site adjustment.
• Made from 7-gauge steel - delivers the heavy-duty strength needed for columns carrying significant structural loads without adding unnecessary bulk.
• G90 zinc galvanized coating - provides extra corrosion resistance, extending the service life of the connector in outdoor or moisture-exposed applications where untreated metal would degrade quickly.

Why This Product

• Dual installation flexibility - the CB44R accommodates both cast-in-place and wet-set concrete installation methods, giving contractors and builders the freedom to work within their preferred construction sequence without requiring a different connector for each approach.
• Built for high-demand structural applications - the combination of 7-gauge steel construction and code-compliant bolt hole spacing means this post base is engineered specifically for columns that must perform under heavy loads, wind uplift, and seismic conditions - not just light-duty decking or decorative use.
• Corrosion resistance you can count on long-term - the G90 galvanized finish goes beyond basic protection, making this column base a practical choice for covered outdoor structures, pergolas, carports, and other settings where the connector will face ongoing exposure to the elements.
• Flush base plate design supports full post bearing - by sitting level with the concrete surface, the base plate maximizes the contact area between post and foundation, distributing load evenly and reducing the risk of concentrated stress points at the connection.

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: CB44R
• Nominal Column Size: 4x4 rough
• Gauge: 7
• Coating / Finish: Zinc Galvanized, G90
• Install With: (2) 5/8 in. diameter machine bolts (sold separately)
• Country of Origin: United States

Options

• Contact us for Configurable Options and Special orders

Frequently Asked Questions

What lumber types is the CB44R compatible with?

The CB44R is designed to connect posts to concrete foundations for a wide range of lumber, glulam, and engineered wood product sizes, specifically sized for a 4x4 rough nominal column.

How is the CB44R installed in concrete?

The CB44R can be installed either cast-in-place or wet set into the concrete. In both methods, the bottom of the base plate sits flush with the concrete surface to ensure full post bearing.

What fasteners are required to install the CB44R?

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

Why is the G90 galvanized finish important?

The G90 zinc galvanized coating provides extra corrosion resistance, making the CB44R well-suited for applications where the connector may be exposed to moisture or outdoor environmental conditions.

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