The Simpson CBSTQ66Z-SDS2 CBSTQ Standoff Column Base is a cast-in-place post base from Simpson engineered to deliver enhanced strength and stability for 6x6 wood posts in residential and light commercial construction. Combining a code-required 1 in. standoff with ZMAX galvanization, this column base provides a dependable solution for building secure, long-lasting connections between wood posts and concrete foundations - whether for decks, pergolas, covered patios, or structural framing.

Key Features

• Code-required 1 in. standoff design - elevates the post above the concrete surface, keeping post ends away from direct moisture contact and significantly reducing the risk of rot over time
• S-shaped bearing tabs - provide increased strength and allow for higher downloads, giving you a more capable connection where load demands are greater
• Includes (14) 1/4 in. x 2 in. Strong-Drive SDS Heavy-Duty Connector screws - fasteners arrive ready to install, and their design provides a greater wood net section area than bolts for a stronger overall connection
• ZMAX galvanization - delivers extra corrosion resistance suited for exterior environments and treated-wood applications, helping the hardware hold up long-term in harsh conditions
• Base gauge 12, strap gauge 10 construction - heavier strap gauge reinforces the connector where uplift and lateral forces are most demanding

Why This Product

• Built-in moisture protection from day one - the 1 in. standoff is not just a convenience feature; it is a code-required design that actively protects the post end from water pooling and contact, extending the service life of your structure without added accessories or field modifications
• Everything needed for installation is included - the SDS Heavy-Duty Connector screws ship with the base, eliminating a separate trip for compatible fasteners and keeping your project on track
• Higher load capacity than previous-generation bases - S-shaped bearing tabs and the dual-gauge steel construction work together to handle greater download forces, making this base a reliable choice where structural performance is a priority
• Corrosion resistance designed for real-world exterior use - ZMAX galvanization is specifically suited for treated-wood and outdoor applications, so this post base maintains its integrity even in the demanding conditions where 6x6 post connections are most commonly needed

Specifications

• MPN: CBSTQ66Z-SDS2
• Brand: Simpson Strong-Tie
• Member Size: 6x6
• Width 1: 5-1/2 in.
• Width 2: 5-1/2 in.
• Depth: 6-7/8 in.
• Height: 8-3/4 in.
• Gauge: Base 12; strap 10
• Coating: ZMAX
• Finish: ZMAX
• Country of Origin: United States

What's Included

Each pack contains (1) CBSTQ66Z-SDS2 Column Base, (14) 1/4 in. x 2 in. Strong-Drive SDS Heavy-Duty Connector screws.

Frequently Asked Questions

Why does the CBSTQ66Z-SDS2 have a 1 in. standoff design?

The 1 in. standoff design is code-required and serves to elevate the wood post above the concrete surface. This separation protects the post end from direct moisture contact, significantly reducing the risk of moisture-related rot and extending the service life of the post.

What type of fasteners are used to install this column base, and are they included?

This column base installs with (14) 1/4 in. x 2 in. Strong-Drive SDS Heavy-Duty Connector screws, which are included with the product. These screws provide a greater wood net section area than bolts, contributing to stronger overall connections.

Is the CBSTQ66Z-SDS2 suitable for exterior and treated-wood applications?

Yes. The CBSTQ66Z-SDS2 features ZMAX galvanization, which offers extra corrosion resistance specifically suited for exterior environments and applications involving treated wood, making it a reliable choice for both residential and light commercial outdoor projects.

What gives the CBSTQ66Z-SDS2 its higher load capacity compared to previous models?

The CBSTQ66Z-SDS2 incorporates S-shaped bearing tabs that provide increased strength, allowing for higher downloads. Combined with the Strong-Drive SDS Heavy-Duty Connector screws, these design elements work together to deliver higher load capacities than previous column base models.

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