Simpson ABA46Z ABA ZMAX Galvanized Adjustable Standoff Post Base for 4x6 is a Simpson Strong-Tie engineered connector designed to attach wooden posts to existing concrete with a built-in 1-inch standoff that helps prevent rot at the post end. This adjustable post base is an ideal solution for securing 4x6 structural posts to foundations in basements, exterior environments, or areas exposed to weather and water splash, offering both code compliance and cost-effective installation.

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: 4x6
• Made from 14-gauge steel
• ZMAX galvanization offers extra corrosion resistance for exterior and treated-wood applications

Specifications

• Model Number: ABA46Z
• Brand: Simpson Strong-Tie
• Nominal Post Size: 4x6
• Gauge: 14
• Width: 3 9/16 in.
• Height: 3 1/8 in.
• Length: 5 3/16 in.
• Coating/Finish: ZMAX
• Install With: 16d common nails or #10 x 1-1/2 Strong-Drive SD screws (sold separately)
• Required Fasteners: (1) 5/8 in. concrete anchor and (8) 0.162 in. x 3-1/2 in. nails
• Country of Origin: United States

Approved Applications

• Attaching 4x6 wooden posts to existing concrete foundations
• Structural post installations in basements requiring code-compliant standoff clearance
• Exterior post installations exposed to weather or water splash
• Applications requiring increased uplift resistance for earthquake or wind loading
• Installations using treated lumber where enhanced corrosion resistance is required

Frequently Asked Questions

What post size is the ABA46Z designed for?

The ABA46Z is designed for a nominal 4x6 post size, providing a secure and properly fitted connection between the post and the concrete foundation.

Why does this post base have a 1-inch standoff?

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

What fasteners are used to install the ABA46Z?

The ABA46Z attaches to the post with 16d common nails or #10 x 1-1/2 Strong-Drive SD connector screws. Securing the base to the concrete requires a 5/8 in. concrete anchor.

Why is ZMAX galvanization important for this post base?

ZMAX galvanization provides extra corrosion resistance, making the ABA46Z well suited for exterior applications and use with treated lumber, where standard galvanized finishes may be insufficient to withstand exposure to the elements or chemicals present in treated wood.

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