Simpson Strong-Tie Z-MAX 4 in. x 4 in. 16-Gauge Galvanized Adjustable Post Base-ABU44Z at The Home Depot

Simpson Strong-Tie

Model # ABU44Z

Internet # 100375358

Store SKU # 501583

Z-MAX 4 in. x 4 in. 16-Gauge Galvanized Adjustable Post Base

Simpson Strong-Tie Z-MAX 4 in. x 4 in. 16-Gauge Galvanized Adjustable Post Base

This item has been discontinued.
The Home Depot no longer carries this specific product.

$23.51 / each


Model # ABU44Z

Internet # 100375358

Store SKU # 501583

Store SO SKU # 592854

Post and Column Bases secure the bottom of posts or columns to concrete and are perfect for decks or patio covers. Models are available for attaching to existing hardened concrete, wet concrete, as well as wood. The AB series also offers adjustability around the anchor bolt to achieve optimum post placement. And many models provide a 1 in. standoff from the concrete to help avoid post-end rot from moisture.

  • 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: 4 in. x4 in.
  • 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 16d common nails or #10 x 1-1/2 in. Strong-Drive SD screws

Info & Guides

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Assembled Depth (in.)  3.5 in  Assembled Height (in.)  5.75 in 
Assembled Width (in.)  4 in  Base Type  Adjustable Base 
Gauge  12  Manufacturer Warranty  Visit our website at and type in warranty in the search box for detailed warranty information 
Material  Steel  Number of Pieces 
Product Weight (lb.)  1.867 lb  Product Width (in.) 
Returnable  90-Day 


Rated 4.3 out of 5 by 10 reviewers.
Rated 5 out of 5 by Great quality Made it so easy to attach this post base to the cement October 21, 2014
Rated 2 out of 5 by Way overpriced for what they are. At over twenty dollars each, these should be way more ruggedly built, and have a much higher quality galvanized finish. I replaced a half-dozen of these for a customer who couldn't believe that the last ones had only lasted six years before literally rusting to pieces. I would have rather used a different product, but this was all that was available at H.D. September 2, 2014
Rated 4 out of 5 by Good enough Easy to install. The price is competitive with other stores. Good quality though. May 13, 2014
Rated 5 out of 5 by Easy to work with These bases get the job done. easy to work with, strong,simple to install. April 15, 2014
Rated 5 out of 5 by The standoff feature allows for repositioning the post easily. Setting the post and aligning it perfectly is simple with the ability of the standoff to move without getting in the way of the holddown nut. Great feature! May 7, 2013
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