Simpson Strong-Tie ABA66Z ABA ZMAX Galvanized Adjustable Standoff Post Base for 6x6 is a heavy-duty post base engineered by Simpson Strong-Tie to attach nominal 6x6 wooden posts to existing concrete. Built from 14-gauge steel with ZMAX galvanization, this adjustable standoff post base delivers superior corrosion resistance and a reliable structural connection - making it a cost-effective solution for decks, patios, pergolas, and other exterior or basement post applications.

Key Features

• The slot in the base enables flexibility around the anchor bolt, making precise post placement easier
• The 1 in. standoff design meets code requirements for structural posts installed in basements or exposed to weather or water splash
• Increased uplift loads for earthquake or wind loading
• Nominal post size: 6x6
• Made from 14-gauge steel
• ZMAX galvanization offers extra corrosion resistance for exterior and treated-wood applications

Specifications

• Model Number: ABA66Z
• Nominal Post Size: 6x6
• Gauge: 14
• Width: 5-1/2 in.
• Height: 3-1/8 in.
• Length: 5-3/8 in.
• Coating/Finish: ZMAX
• Standoff Height: 1 in.
• Country of Origin: United States

Approved Applications

• Attaching wooden posts to existing concrete slabs or footings
• Structural posts installed in basements or areas exposed to weather or water splash
• Exterior post applications requiring enhanced corrosion resistance
• Installations involving treated wood where ZMAX coating is recommended
• Structures requiring increased uplift resistance for earthquake or wind loading

Install With (sold separately)

• Install with (8) 0.162 x 3-1/2 in. nails or (8) #10 x 1-1/2 Strong-Drive SD Connector screws (Model: SD10112)
• Requires (1) 5/8 in. concrete anchor (not included)

Frequently Asked Questions

What size post is the ABA66Z designed to fit?

The ABA66Z is designed for a nominal 6x6 post size, providing a secure and properly sized connection between a 6x6 wooden post and a concrete surface.

Why does this post base have a 1 in. standoff?

The built-in 1 in. standoff is engineered to help prevent rot at the end of the post by keeping the wood elevated above the concrete surface. This standoff design also meets code requirements for structural posts installed in basements or in locations exposed to weather or water splash.

What fasteners should be used to install the ABA66Z?

The ABA66Z should be installed with (8) 0.162 x 3-1/2 in. nails or (8) #10 x 1-1/2 Strong-Drive SD Connector screws (Model: SD10112), along with (1) 5/8 in. concrete anchor to secure the base to the concrete.

Is the ABA66Z suitable for use with pressure-treated lumber?

Yes. The ABA66Z features ZMAX galvanization, which offers extra corrosion resistance specifically designed for exterior and treated-wood applications, making it compatible with pressure-treated lumber commonly used in outdoor structural builds.

Note: Product dimensions may differ from picture. See item description for specifications.