The Simpson Glulam Column Base 8-3/4 x 8-3/4 is a heavy-duty structural connector from Simpson engineered to securely anchor glulam, lumber, and engineered wood product columns to concrete foundations. Using a cast-in-place or wet-set installation method, the base plate sits flush with the concrete surface, providing full post bearing and maximum load transfer - making it a dependable choice for structural column connections in both commercial and residential construction.

Key Features

• Designed for Glulam 8-3/4" x 8-3/4" columns - ensures a precise, code-compliant fit for the specific column size without guesswork or field modification.
• Cast-in-place or wet-set installation - base plate sets flush with the concrete surface, delivering full post bearing and maximum load transfer for a structurally sound connection.
• Approved for glulam, lumber, and engineered wood product columns - gives builders and engineers flexibility across a range of column materials without needing a different connector.
• Suitable for wind- and seismic-loading environments - engineered to resist high uplift forces, supporting code-compliant performance on demanding structural projects.
• Simpson Strong-Tie gray paint finish - provides a consistent, professionally finished appearance while offering surface protection in both indoor and covered outdoor applications.
• Made in the United States - produced to meet the quality standards required by engineers and contractors on structural commercial and residential projects.

Why This Product

• Purpose-built for a precise column size - the CB9-9 is specifically engineered for Glulam 8-3/4" x 8-3/4" columns, so structural professionals get a connector sized and rated for the exact application rather than a compromised fit.
• Versatile material compatibility - approved for glulam, lumber, and engineered wood product columns, this connector works across multiple structural materials, reducing the need to source different hardware for different column types on the same project.
• Engineered for high-demand load conditions - with performance suited to wind- and seismic-loading environments, this column base supports structural connections where uplift resistance and load transfer are critical design requirements.
• Straightforward installation in concrete - the cast-in-place or wet-set method integrates the base directly into the foundation pour, resulting in a flush, stable platform that simplifies the column installation process and supports a clean structural finish.

Specifications

• Manufacturer: Simpson Strong-Tie
• Model / MPN: CB9-9
• Nominal Column Size: Glulam 8-3/4" x 8-3/4"
• Finish: Simpson Strong-Tie gray paint
• Fasteners Required: Bolts - (2) 5/8" (sold separately)
• Width 1: 9 in.
• Width 2: 8-3/4 in.
• Country of Origin: United States

Approved Applications

• Connecting glulam, lumber, and engineered wood product columns to concrete foundations
• Cast-in-place or wet-set concrete foundation installations
• Structural column connections requiring high uplift resistance
• Applications in wind- or seismic-loading environments
• Commercial and residential construction requiring code-compliant column base connections

What's Included

• 1x Simpson Strong-Tie CB9-9 Column Base
• Note: (2) 5/8" bolts required - 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 CB9-9 designed to fit?

The CB9-9 is specifically designed for Glulam 8-3/4" x 8-3/4" columns. It is also approved for use with lumber and engineered wood products of the appropriate column size.

How is the CB9-9 installed?

The CB9-9 is installed using a cast-in-place or wet-set method, meaning it is set into fresh concrete so that the base plate sits flush with the concrete surface. This flush positioning provides full post bearing and maximum load transfer between the column and the foundation.

What fasteners are required to attach the column to the CB9-9?

Attaching the column to the CB9-9 requires two 5/8" bolts. The bolt hole locations are designed to meet code-required spacing for optimal load capacity.

Is the CB9-9 suitable for use in areas subject to wind or seismic loads?

Yes, the CB9-9 features increased uplift resistance, making it suitable for applications where wind or seismic loading is a concern. It is engineered to deliver high structural values for demanding commercial and residential projects.