Simpson Strong-Tie ABU44Z ABU ZMAX® Galvanized Adjustable Standoff Post Base for 4x4
Simpson Strong-Tie® ABU Adjustable Post Base (4x4)
The ABU attaches wood posts to existing concrete in high-capacity applications. It has a built-in 1-in. standoff that helps keep the end of the post from rotting. A slotted anchor hole in the base allows for adjustment, and it fastens to the post with nails, Strong-Drive® SD Connector screws or bolts. It’s a cost-effective way to secure a post to the foundation, designed for maximum uplift performance.
Key Features
- Adjustable placement: the slot in the base gives flexibility around the anchor bolt, making precise post placement easier
- Built-in 1-in. standoff: meets code requirements for structural posts in basements or exposed to weather or water splash
- High uplift capacity: increased uplift loads for earthquake or wind loading
- ZMAX® galvanization: extra corrosion resistance for exterior and treated-wood applications
Specifications
| Nominal Post Size | 4x4 |
| Steel Gauge | Base: 16 ga, Strap: 12 ga |
| Standoff | 1 in. |
| Finish | ZMAX® galvanized coating |
| Application | Attaching wood posts to existing concrete |
Installation
Install with any one of the following:
- 0.162 in. x 3-1/2 in. nails
- #10 x 1-1/2 in. Strong-Drive® SD Connector screws
- 1/2 in. diameter machine bolts
What’s Included
- Post base only. Fasteners are not included (sold separately).
Product Details
Key Features
- The slot in the base enables flexibility around the anchor bolt, making precise post placement easier
- 1" stand-off 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
Material
- See table
Finish
- ZMAX® and some in stainless steel; see Corrosion Information
| SKU | ABU44Z |
|---|---|
| Brand | Simpson Strong-Tie® |
Shipping & Returns
Shipping:
We offer free standard shipping on all orders over $200 ($975.00 for Simpson StrongTie products). Orders are usually processed within 1–2 business days and delivered within 5–7 business days. Express shipping options are also available at checkout.
Returns:
If you are not completely satisfied with your purchase, you may return your item(s) within 30 days of delivery for a full refund or exchange. Returned items must be in their original condition and packaging.
For more details, please visit our Return Policy page.
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