The Simpson Rough 10 x 10 Adjustable Post Base ZMAX ABU1010RZ from Simpson Strong-Tie is engineered to securely attach large wooden posts to existing concrete in high capacity structural applications. The built-in 1-in. standoff elevates the post end away from the concrete surface, helping to prevent rot and meeting code requirements for posts installed in basements or locations exposed to weather or water splash. A slotted anchor hole provides on-the-spot adjustability during installation, and ZMAX galvanization delivers elevated corrosion resistance that makes this adjustable post base well-suited for exterior construction and treated-wood applications where long-term durability is essential.

Key Features

• Slotted anchor hole in the base - enables flexibility around the anchor bolt, so precise post placement is easier and minor alignment corrections can be made without repositioning the anchor
• 1-in. standoff design - keeps the post end elevated off the concrete to help prevent rot, while meeting code requirements for structural posts in basements or areas exposed to weather or water splash
• Increased uplift load capacity - engineered for earthquake and wind loading demands, giving builders confidence in high-stress, high-capacity structural connections
• 14-gauge steel construction - provides the structural strength needed for large rough 10x10 post applications without adding unnecessary bulk
• ZMAX galvanized coating - offers extra corrosion resistance beyond standard galvanization, making this post base a reliable choice for exterior environments and use with pressure-treated lumber
• Compatible with multiple fastener types - attaches to the post with nails, Strong-Drive SD Connector screws, or bolts, giving installers flexibility based on the requirements of the job

Why This Product

• Built for demanding structural applications - the ABU1010RZ is specifically designed for high capacity connections, with increased uplift performance under earthquake and wind loading that makes it a dependable choice for large-post structural framing
• Adjustability that saves time on the job - the slotted base design allows for fine-tuning post position around the anchor bolt during installation, reducing the frustration and rework that come with fixed-hole bases
• Long-term rot and corrosion protection in one base - the combination of the 1-in. standoff and ZMAX galvanized finish addresses two of the most common causes of post base failure, keeping the connection sound in both wet conditions and treated-wood environments
• Versatile fastening options for real-world installations - support for nails, screws, or bolts means this post base adapts to different site conditions and installer preferences without requiring special hardware beyond what is already on hand

Specifications

• MPN: ABU1010RZ
• Brand: Simpson Strong-Tie
• Nominal Post Size: Rough 10x10
• Width: 9 in.
• Length: 10 in.
• Height: 7 in.
• Gauge: 14
• Coating: ZMAX
• Finish: ZMAX
• Install With: 0.162 in. x 3-1/2 in. nails (sold separately)
• Country of Origin: United States

Frequently Asked Questions

What post size is the ABU1010RZ designed to fit?

The ABU1010RZ is designed for a nominal post size of Rough 10x10, making it suitable for large structural posts in high capacity applications.

Why does this post base include a 1-in. standoff?

The built-in 1-in. standoff helps prevent rot at the end of the post by keeping the wood elevated away from concrete contact. It also meets code requirements for structural posts installed in basements or in locations exposed to weather or water splash.

What makes the ZMAX coating beneficial for this post base?

ZMAX galvanization provides extra corrosion resistance, making the ABU1010RZ well-suited for exterior applications and use with treated wood, where standard galvanization may not offer sufficient 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 requiring the anchor to be repositioned.

Note: Product dimensions may differ from picture.