The Simpson 6x6 Stainless Steel Column Base Quick-Install CBSQ66SS is a stainless steel post base engineered by Simpson to serve as the critical interface between 6x6 lumber columns and concrete footing surfaces. Designed for top-supported column installations, this connector transmits structural loads and stresses from the column down to the concrete foundation, delivering a secure and lasting connection in demanding structural applications. The CBSQ66SS uses Strong-Drive SDS Heavy-Duty Connector screws, enabling fast installation, a reduced reveal, and a greater net section area of the column compared to traditional bolt connections - making it a practical and structurally sound choice for builders and contractors working with post-to-concrete assemblies.

Key Features

• Stainless steel construction - provides corrosion resistance suited to applications where long-term durability and material integrity are priorities
• Designed specifically for 6x6 column applications - ensures a precise, engineered fit for standard 6x6 lumber posts without modification or adaptation
• Strong-Drive SDS Heavy-Duty Connector screw installation - speeds up the fastening process on the job site while delivering a reduced reveal and a greater net section area of the column versus traditional bolt connections
• Flush standoff base design - installs with the bottom of the standoff flush to the top of the concrete, creating a clean, code-consistent footing connection that protects the column base from direct moisture contact
• Engineered for top-supported column installations - clearly defined application guidance helps contractors specify and install the connector correctly, reducing the risk of misapplication in non-braced or fence-type scenarios
• Made in the United States - domestic production supports consistent quality standards and reliable material sourcing for structural connector applications

Why This Product

• Faster installation without sacrificing structural performance - the use of Strong-Drive SDS Heavy-Duty Connector screws in place of traditional bolt connections reduces installation time on the job site while maintaining the structural load transfer required for column-to-footing connections
• Stainless steel finish for lasting reliability - the stainless steel material provides a level of corrosion resistance that makes this column base well suited to applications where long-term exposure and durability are key considerations
• Purpose-built fit for 6x6 post bases - engineered specifically for 6x6 lumber columns, this connector eliminates guesswork in sizing and ensures the post base performs as intended within the overall structure
• Trusted Simpson engineering - backed by the Simpson brand, this column base standoff is designed to meet the precise load-transfer and installation requirements that structural post base applications demand

Specifications

• Manufacturer: Simpson Strong-Tie
• Model Number (MPN): CBSQ66SS
• Column Size: 6x6
• Finish: Stainless Steel
• Width 1: 5-1/2 in.
• Width 2: 5-1/2 in.
• Depth: 6-7/8 in.
• Height: 8-3/4 in.
• Country of Origin: United States

Approved Applications

• Connecting 6x6 columns to concrete footing surfaces
• Transmitting structural loads and stresses from columns to concrete foundations
• Top-supported column installations where lateral rotation resistance is provided by the overall structure

Installation Notes

• Use all specified fasteners; see General Notes
• Install CBSQ with bottom of standoff flush to top of concrete
• Post bases do not provide adequate resistance to prevent members from rotating about the base and therefore are not recommended for non-top-supported installations (such as fences or unbraced carports)

Note: Product dimensions and/or screw or bolt holes may differ from picture. Please verify all configurations and specifications are correct before completing your purchase.

Frequently Asked Questions

What column size is the CBSQ66SS compatible with?

The CBSQ66SS is designed specifically for 6x6 lumber columns, serving as the interface between those columns and their concrete foundations.

What type of fasteners does the CBSQ66SS use, and why does it matter?

The CBSQ66SS uses Strong-Drive SDS Heavy-Duty Connector screws. This fastening method enables faster installation, provides a reduced reveal, and delivers a greater net section area of the column compared to traditional bolt connections, making it a structurally efficient choice.

Why is this column base made from stainless steel?

The stainless steel finish provides enhanced corrosion resistance, making the CBSQ66SS well suited for demanding environments where exposure to moisture or other corrosive conditions is a concern.

How does the CBSQ66SS install relative to the concrete surface?

The bottom of the standoff installs flush to the top of the concrete, providing a clean and precise fit at the footing surface.