The Simpson ABU46SS ABU Stainless-Steel Adjustable Standoff Post Base for 4x6 is a Simpson Strong-Tie engineered connector built to attach wooden posts to existing concrete in high-capacity structural applications. Constructed from 12-gauge stainless steel, this adjustable post base delivers high and severe corrosion resistance, making it well suited for basements, coastal environments, and any installation exposed to weather or water splash. The built-in 1-inch standoff keeps the post end elevated above the concrete surface to help prevent rot, while the slotted anchor hole allows flexible, precise post placement around existing anchor bolt positions - offering a reliable and cost-effective solution for foundation post connections where maximum uplift performance is required.

Key Features

• Slotted anchor hole - enables flexibility around the anchor bolt during installation, so precise post placement is easier even when working with existing concrete anchor locations
• Built-in 1-inch standoff - keeps the post end elevated above the concrete surface to help prevent rot and meets code requirements for structural posts in basements or locations exposed to weather or water splash
• Engineered for increased uplift loads - designed to handle earthquake and wind loading demands, giving you confidence in the connection's performance under lateral and upward forces
• 12-gauge stainless steel construction - delivers high and severe corrosion resistance, making this post base appropriate for demanding environments where standard galvanized hardware falls short
• Installs with nails, screws, or bolts - compatible with stainless-steel 0.162 in. x 3-1/2 in. nails or 1/2 in. diameter stainless-steel machine bolts, giving installers flexibility in fastener choice
• Sized for 4x6 nominal posts - fits 4x6 lumber precisely, eliminating guesswork and ensuring a secure, code-compliant connection at the post base

Why This Product

• Built to resist corrosion in harsh conditions - the all-stainless-steel construction provides high and severe corrosion resistance, making this standoff post base a dependable long-term choice for outdoor structures, wet areas, and coastal installations where moisture is a constant concern
• The adjustable design saves time on the job - the slotted base hole gives you room to shift post position around an existing anchor bolt, reducing the need for precision anchor placement in advance and making the installation process more forgiving
• Rot prevention is built in, not added on - the 1-inch standoff is an integral part of the connector design, automatically providing the clearance needed to meet code requirements and protect the post end from moisture contact without any additional hardware or shimming
• Engineered for maximum uplift in demanding structural applications - with performance specifically rated for earthquake and wind loading scenarios, this post base is suited for high-capacity connections where a standard post base may not meet load requirements

Specifications

• MPN: ABU46SS
• Brand: Simpson Strong-Tie
• Nominal Post Size: 4x6
• Width: 5 in.
• Length: 3-9/16 in.
• Height: 7 in.
• Hole Bottom: 2-5/8 in.
• Material: Stainless Steel
• Finish: Stainless Steel
• Gauge: 12
• Standoff Height: 1 in.
• Install With: Install with stainless-steel 0.162 in. x 3-1/2 in. nails or 1/2 in. diameter stainless-steel machine bolts (sold separately)
• Country of Origin: United States

Frequently Asked Questions

What is the purpose of the 1-inch standoff on the ABU46SS?

The built-in 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.

Why does the ABU46SS have a slotted anchor hole?

The slot in the base enables flexibility around the anchor bolt, making precise post placement easier during installation. This adjustability is especially useful when working around existing anchor bolt positions in concrete.

What fasteners are required to install the ABU46SS?

The ABU46SS should be installed with stainless-steel 0.162 in. x 3-1/2 in. nails or 1/2 in. diameter stainless-steel machine bolts. Using stainless-steel fasteners is important to maintain the corrosion resistance of the connection.

Is the ABU46SS suitable for use in high-corrosion environments?

Yes. The ABU46SS is made from stainless steel and is rated for high and severe corrosion resistance, making it appropriate for coastal, marine, and other demanding environments where standard galvanized connectors may not provide adequate protection.

Note: Product dimensions may differ from picture.