ABU ZMAX Galvanized Adjustable Standoff Post Base for 4x4 Nominal Lumber
- Adjustable post base for secure and stable lumber connections
- ZMAX galvanized coating for superior corrosion resistance
- Designed for nominal and rough lumber in various sizes
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Product Details
About This Product
The Simpson Strong-Tie ABA is designed to attach wooden posts to existing concrete. The built-in 1 in. standoff of this adjustable post base helps to prevent rot at the end of the post. The ABA has a slotted anchor hole in the base for adjustability and attaches to the post with nails or Strong-Drive SD Connector screws. This versatile post base makes a cost-effective option for securing a post to the foundation.
Highlights
- Attaches a post to existing concrete for decks, patio covers and other top-supported structures
- Features 1-in standoff to help prevent rot at post end
- Slotted for adjustability
- Designed for versatility, cost-effectiveness and maximum uplift performance
- Nominal post size: 4x4
- Made from 12-Gauge steel plates; 16-Gauge steel base cover
- Z-MAX galvanization offers extra corrosion resistance for exterior and treated-wood applications
- Install with 0.162 in. x 3-1/2 in. nails (16DHDG) or #10 x 1-1/2 in. Strong-Drive SD screws (SD10112)
- Shop all Simpson Strong-Tie products
- Return Policy
Product Information
Specifications
Dimensions: H 5.75 in, W 4 in, D 3.5 in
Dimensions
Nominal Post Size (in.) | 4x4 |
|---|---|
Product Depth (in.) | 3.5 in |
Product Height (in.) | 5.75 in |
Product Width (in.) | 4 in |
Details
Base Type | Standoff Post Base |
|---|---|
Connector Finish | G185 Galvanized |
Fasteners Included | Fasteners Not Included |
Features | No Additional Features |
Gauge | 16 |
Material | Steel |
Material Connector Compatibility | Wood to Concrete |
Package Quantity | 1 |
Product Weight (lb.) | 1.87 lb |
Returnable | 90-Day |
Warranty / Certifications
Manufacturer Warranty | Limited Warranty |
|---|
Questions & Answers
What's the minimum 4x4 post height that can be used with these post bases in order for the post to extend high enough for the ABU44Z to fully wrap the post and accept all required fasteners?
Hi DyEli, thank you for your interest in our products. To ensure we answer your question accurately please contact the Simpson Strong-Tie Customer Service team at 800-999-5099. We look forward to hearing from you.
Can I use the ABU44Z with 8 inch concrete piers?
Hi TonyB, this is Lexus from Simpson Strong-Tie. Thank you for your inquiry about our ABU44Z item! We want to ensure your question is addressed thoroughly, so we kindly ask that you contact our Simpson Strong-Tie Customer Service Team at 800-999-5099 for direct support. We look forward to assisting you!
Is the orientation of the stand-off plate as it sits onto the main body of the base an important installation detail? Does it matter if the "folded" portion of the stand off is towards the open area or towards the vertical plate?
Hi Brent, this is Lexus from Simpson Strong-Tie. Please contact our Simpson Strong-Tie Customer Service team at (800) 999-5099. We look forward to hearing from you!
Can this bracket be used for a 4x4 fence post
Hey Jeff, this is Ricardo from Simpson Strong-Tie. This base is designed for nominal 4x4 lumber and can be used for many applications including fence posts. Because these bases do not provide any lateral resistance I would be cautious on the height of the post. When you have a taller post that is unsupported at the top, it will put additional lateral and rotational stresses on the base. You can also possibly look at our RPBZ (Retrofit Post Base) and CPS (Composite Plastic Standoff) as an alternative. If you would like to discuss further, please contact us at 800-999-5099. Have a great day.
Can the 4x4 ABU standoff post be welded to a cargo container.?
Hello Bert, this is McKenzie from Simpson Strong-Tie. The ABU is designed to attach wooden posts to existing concrete in high-capacity applications. We don't have anything to support the ABU in that type of application. If you need more information or have additional questions, please contact the Simpson Strong-Tie Customer Service team at 800-999-5099. We look forward to hearing from you.
Is there a recommended thickness for the concrete that this will be attached to?
Hello Alex, my name is Colin from Simpson Strong-Tie. The ABU44Z post base is designed to receive 5/8" diameter anchorage, either cast-in-place or a post-install anchor product such as a mechanical anchor or a threaded rod with a chemical adhesive. Enter "ABU" in the Search Strongtie.com field on our home page strongtie.com and click the image of the ABU base. That will direct you to our allowable download and uplift values. Your concrete must be designed to accept the load values your 4x4 post creates. The concrete design, thickness, and correct anchor should be reviewed by a design professional. If you need more information or have additional questions, please contact the Simpson Strong-Tie Customer Service team at 800-999-5099. We look forward to hearing from you.
The recommended concrete thickness will depend on the load to be supported and fastening method to be used.
Will it work for 4 3/4 x 4 3/4 post?
Hello Nick, this is Stacy with Simpson Strong-Tie. The ABU44Z is not rated to be used with a 4 3/4 x 4 3/4 post. A potential alternative to explore is the RPBZ. If you need the 1" standoff, you may also explore using the CPS with RPBZ. None of our other post bases can accommodate this size post without some sort of added blocking/shim. If you have any questions please call us at (800) 999-5099. We look forward to speaking with you.
I think it will be too small. I would buy the 6x6 post base instead. A bit bigger, but it will offer sound support to the post.
No they fit a 4x4 post (3 1/2 x 3 1/2 dimensions))
No, Mike
Can you fix the installation guide?
Hi nicb, This is Colin from Simpson Strong-Tie. I too saw the web link to our Installation Guide does not work on the Home Depot website. We do not have access to this. Please contact The Home Depot's Customer Service at 1-800-466-3337 for further assistance. In the mean time you can find our Installer's Pocket Guide on strongtie.com. In the Search Strong-tie.com field enter this title and download the guide. Information on the ABU post base is on pages 34-36. If you need more information or have additional questions, please contact the Simpson Strong-Tie Customer Service team at 800-999-5099. We look forward to hearing from you.
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