The Simpson Adjustable Post Base for 10x10 Nominal Posts is a heavy-duty structural connector engineered by Simpson to anchor wooden posts securely to existing concrete in high-capacity applications. Constructed from 14-gauge steel with a ZMAX galvanized finish, this post base combines a built-in 1 in. standoff with a slotted anchor hole to deliver both installation flexibility and maximum uplift resistance - making it a reliable choice for structural post connections exposed to demanding loads, weather, or moisture.

Key Features

• Slotted anchor hole in the base - enables flexibility around the anchor bolt, making precise post placement easier and allowing minor positioning adjustments during installation without compromising structural integrity
• Built-in 1 in. standoff design - keeps the post end elevated above the concrete surface to help prevent rot, while meeting code requirements for structural posts installed in basements or areas exposed to weather or water splash
• Engineered for increased uplift loads - designed to handle earthquake and wind loading demands, adding a critical layer of structural security for posts in seismic or high-wind regions
• 14-gauge steel construction - provides the strength and rigidity needed for large, heavy-duty post-to-concrete connections in demanding structural applications
• ZMAX galvanized finish - offers extra corrosion resistance beyond standard galvanization, making this post base well suited for exterior installations and use with treated wood where moisture and chemical exposure are concerns
• Compatible with multiple fastener types - attaches to the post using nails, Strong-Drive SD Connector screws, or bolts, giving installers flexibility to match the fastening method to the application

Why This Product

• Purpose-built for large post applications - sized specifically for nominal 10x10 posts, this adjustable post base is designed to handle the scale and load demands that come with heavy structural framing, making it appropriate where undersized hardware simply is not an option
• Rot prevention built into the design - the 1 in. standoff lifts the post end off the concrete, addressing one of the most common failure points in post installations exposed to moisture or weather splash without requiring any additional hardware
• Adjustability that saves time on the job - the slotted base hole accommodates minor anchor bolt offsets, reducing the need for precise pre-drilling and helping keep installations on schedule when post placement requires fine-tuning
• ZMAX coating for long-term performance in tough environments - where pressure-treated lumber and outdoor exposure are factors, the ZMAX galvanization delivers the added corrosion protection needed to maintain structural integrity over the long term

Specifications

• MPN: ABU1010Z
• Brand: Simpson Strong-Tie
• Nominal Post Size: 10x10
• Gauge: 14
• Width: 9-1/2 in.
• Length: 9 in.
• Height: 7-1/4 in.
• Coating/Finish: ZMAX
• Install With: 0.162 in. x 3-1/2 in. nails (sold separately)
• Country of Origin: United States

Frequently Asked Questions

What is the nominal post size this post base is designed for?

The Simpson ABU1010Z is designed for a nominal 10x10 post size, making it suitable for large, heavy-duty structural post applications.

Why does the ABU1010Z include a 1-inch standoff design?

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

What makes the ZMAX coating beneficial for this post base?

ZMAX galvanization provides extra corrosion resistance, making the ABU1010Z well suited for exterior applications and use with treated wood, where standard galvanized finishes may not offer adequate protection.

How does the slotted anchor hole improve installation?

The slot in the base enables flexibility around the anchor bolt, making precise post placement easier and allowing for minor adjustments during installation without compromising structural integrity.

Note: Product dimensions may differ from picture.