Model # ABU44Z

Internet #100375358

Store SKU #501583

Store SO SKU #592854

Simpson Strong-Tie 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

$15.33 /each

Frequently Bought Together

Product Overview

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. x 4 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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Warranty / Certifications

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Customer Questions & Answers

can the Simpson Strong-Tie 4x4 Uplift Post Base ZMAX be used for a porch railing

Asked by: Anonymous
Yes but the right screws must be used and care as the way you install the product.
Answered by: Sejo1945
Date published: 2016-03-03

What sixe bolts, nuts and washers.

I want to use galvanized bolts with washer and nut. What size.
Asked by: Anonymous
That will work but make sure that the bolts are not to large and insure that they grip a fixed stud or flooring!
Answered by: Sejo1945
Date published: 2016-07-04

I live in West Palm Beach, Florida, I'm looking for this Item ABU44Z, and wish to know in what store I'll find it, Thanks for your help.

Asked by: Anonymous
Could not find this item in stores in my area, had to order online was shipped to me with no shipping charges. Received in 6 days.
Answered by: hub1
Date published: 2015-11-08

Can you use expansion bolts to attach the base to the concrete?

Asked by: Don
It would be up to the Designer to specify the anchor bolt type, length and embedment based on concrete (new or existing? strength? location?), demand loads, local building codes, etc. The T-ANCHORSPEC12 Technical Bulletin (on our website) shows both adhesive and wedge anchor options for the ABU44 in wind and low-seismic regions. Thank you!
Answered by: SimpsonStrong-Tie
Date published: 2016-12-17
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Customer Reviews

Z-MAX 4 in. x 4 in. 16-Gauge Galvanized Adjustable Post Base is rated 4.3 out of 5 by 10.
Rated 2 out of 5 by from 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.
Date published: 2014-09-02
Rated 4 out of 5 by from A good product A bit pricey, but rock-solid when used with the proper anchor bolts in concrete. These were used to mount a decorative railing on a slab porch.
Date published: 2012-07-03
Rated 5 out of 5 by from works great easy to install with sleve anchor and holds post very solidly. Did not use the bold option to secure post, I used decking screws. worked well.
Date published: 2012-04-17
Rated 5 out of 5 by from Great quality Made it so easy to attach this post base to the cement
Date published: 2014-10-22
Rated 5 out of 5 by from 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!
Date published: 2013-05-07
Rated 5 out of 5 by from Great For my project this was great! I recommend this for any 4x4 installation
Date published: 2012-11-20
Rated 3 out of 5 by from post base by zmax good product for med to heavy duty work
Date published: 2010-01-06
Rated 4 out of 5 by from Good enough Easy to install. The price is competitive with other stores. Good quality though.
Date published: 2014-05-13
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