Model # ABA44Z

Internet #100374999

Store SKU #669421

Store SO SKU #592854

Simpson Strong-Tie ABA 4x4 ZMAX Galvanized Adjustable Post Base
0044315430701

Simpson Strong-Tie

ABA 4x4 ZMAX Galvanized Adjustable Post Base

  • Easily attach a post to existing concrete
  • Features 1" standoff to help prevent rot at the end of the post.
  • Z-MAX galvanization provides extra corrosion resistance
$11.87 /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 16-Gauge steel
  • Z-MAX galvanization offers extra corrosion resistance for exterior and treated-wood applications
  • Install with 10d common nails or #9 x 1-1/2 in. Strong-Drive SD screws

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Customer Questions & Answers

22 Questions69 Answers

Customer Questions & Answers

ABA 4x4 ZMAX Galvanized Adjustable Post Base
ABA 4x4 ZMAX Galvanized Adjustable Post Base

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7 answers

Can these be used to support posts for stair landing?

This question is from ABA 4x4 ZMAX Galvanized Adjustable Post Base
Asked by
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October 10, 2012
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Answers (7)

Asked by
Molalla, OR 97038, USA
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September 12, 2015
Answer: 
Yes, they can. You do have exposed galvanized metal showing, though.
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Asked by
Hooksett NH
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July 29, 2014
Answer: 
Yes. I use them on any post that is being attached to concrete to keep the post off the concrete.
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Asked by
Aston, PA, USA
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May 20, 2014
Answer: 
yes
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Asked by
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May 20, 2014
Answer: 
yes they can. It depend what you mount them on. They need to be screwed into concrete or on top of a post or support.
I recommend 6x6 for any posts
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Asked by
Las Cruces, NM
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May 13, 2014
Answer: 
Sure, as long as you have other attachments to ensure rigidity from cross-way stresses.
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Asked by
Catskill Mountains, United States
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November 20, 2013
Answer: 
They can certainly be used to support the post and isolate it from the concrete footing or slab, as long as any necessary lateral or diagonal bracing of the posts is properly installed.
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Asked by
Pleasanton, CA
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October 16, 2012
Answer: 
deckguy,
Are you referring to the stair railing connecting to the deck landing? These would not be recommended for this application. We do not have a load rated post base we recommend for non top-supported installations. Non top-supported structures such as railings, unbraced carports, fences, arbors etc. need to resist lateral loads such as wind, earthquake, climbing kids, people leaning, etc. at the
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deckguy,
Are you referring to the stair railing connecting to the deck landing? These would not be recommended for this application. We do not have a load rated post base we recommend for non top-supported installations. Non top-supported structures such as railings, unbraced carports, fences, arbors etc. need to resist lateral loads such as wind, earthquake, climbing kids, people leaning, etc. at the top. Those lateral loads at the top of post translate to significant moment loads at the bottom. We do not have a base or other connector designed/rated to resist these moment loads.
Thank you! Read Less
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6 answers

mounting to cement porch

This question is from ABA 4x4 ZMAX Galvanized Adjustable Post Base
Asked by
JJ
VIRGINIA
March 6, 2013
is it better to drill holes, and mount with screws ( Tapcons etc.), to avoid cracking of surface area ?? This is a porch front porch that we're working on, with a brick perimeter that we're mounting to..
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Asked by
Molalla, OR 97038, USA
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September 12, 2015
Answer: 
It would work with cement and appropriate anchors.
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Asked by
Hooksett NH
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July 29, 2014
Answer: 
Your going to want to use something different then this as this is more for decks. This would be exposed on your porch and be unsightly.
If going with vinyl railing they sell the metal post that can be attached to surface and vinyl post slides over the metal post for a clean nice look.
These brackets are more for anchoring to concrete at ground when building a deck.
They also have smaller versions of Read More
Your going to want to use something different then this as this is more for decks. This would be exposed on your porch and be unsightly.
If going with vinyl railing they sell the metal post that can be attached to surface and vinyl post slides over the metal post for a clean nice look.
These brackets are more for anchoring to concrete at ground when building a deck.
They also have smaller versions of this where you can use on porch and then use a trim ring around it to hide it at base.
In that case you would want to drill a hole and secure a bolt into porch and then mount the bracket to that bolt for the best strength Read Less
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Asked by
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May 20, 2014
Answer: 
I recommend drilling a concrete anchor in the brick or the concrete.
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Asked by
Las Cruces, NM
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May 13, 2014
Answer: 
If you are near the edge of the concrete portion, it might be best to use Tapcon to avoid shattering the concrete when you tighten up the bolt.
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Asked by
Catskill Mountains, United States
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November 20, 2013
Answer: 
I would use either Tapcons or some type of lead or wedge anchor. Definitely a situation where drilling would be preferred as opposed to a Ramset or any impact driven fastener.
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March 14, 2013
Answer: 
Hi JJ,
Simpson reccomends using a 1/2 inch diameter center anchor bolt for this hardware. These can be a wedge type or an adhesive anchor set with epoxy.
Mike,
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5 answers

Can u use this to support a fence post?

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April 21, 2016
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Answers (5)

Asked by
Eugene, OR
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August 23, 2016
Answer: 
The Strong-Tie installation guide says the adjustable post base should not be used for fences:
"Post bases do not provide adequate resistance to prevent members from rotating about the base and therefore are not recommended for non top-supported installations (such as fences or unbraced carports)."
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Asked by
Lindenhurst NY
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June 28, 2016
Answer: 
Yes , you can wit 4x4
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Asked by
Catskill Mountains, United States
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May 1, 2016
Answer: 
I suppose you could use it for that purpose but I wouldn't recommend it. The post base is designed to support a vertical load such as a deck post, not the lateral load a fence post would receive. It would be quite easy to push the fence post over unless there was some other means of providing support for the post.
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Asked by
Parlin, Sayreville, NJ 08859, USA
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April 25, 2016
Answer: 
Those adjustable post base are usually used for decks, but depending on type of fence and where you place them they may work for some fence work. Probably will not support side pull or end pull as there are only a few screws or nails holding post to the base which should have an anchor bolt set in concert. Side pull or end pull may bend the bracket.
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April 22, 2016
Answer: 
This could be used for that purpose.
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5 answers

Does this adjustable post base come with an anchor bolt?

This question is from ABA 4x4 ZMAX Galvanized Adjustable Post Base
Asked by
Colorado
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September 7, 2014
Does this adjustable post base come with an anchor bolt? If not, what size is recommend.
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Asked by
Catskill Mountains, United States
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May 1, 2016
Answer: 
Anchor bolts are sold separately. Each application is different and needs to have the anchor bolts selected for that particular application.
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Asked by
Molalla, OR 97038, USA
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September 12, 2015
Answer: 
No, it is designed to screw to wood.
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Asked by
Auburn, CA
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December 30, 2014
Answer: 
No. It has one slotted hole that will take up to 1/2" dia.
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September 8, 2014
Answer: 
The anchor bolts are sold separately. The ABA44Z requires a 1/2" diameter anchor. It would be up to the Designer/Engineer of Record to specify the anchor bolt type, length and embedment. Thank you!
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Asked by
Hooksett NH
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September 7, 2014
Answer: 
No it does not
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Customer Reviews

Rated 4.5 out of 5 by 62 reviewers.
Rated 5.0 out of 5.0 by Holds a 4x4 post pretty strong Good post bracket, good for supported structures like decks but a little "loose" for unsupported structures like fense posts. October 11, 2016
Rated 4.0 out of 5.0 by Good purchase I am pleased with the galvanizosted post. It was Easy to install. October 11, 2016
Rated 5.0 out of 5.0 by Best way to stop rot In replacing rotted deck supports, one sees how much damage water rot does over time. Elevating supports with a base like this looks good and give confidence that the posts will remain solid! September 8, 2016
Rated 5.0 out of 5.0 by Great for mounting 4X4 wooden post to existing concrete structure. I had to remove and replace a 4X4 post that my dog ate through - that is right. It had been sunk in the ground and concrete poured around. I removed the old post, dug out the wood in the base, poured new concrete in the hole and used this as the support. It worked great. It is adjustable to one side only so I had to plumb for exact location but it worked very well. I used Simpson structural screws with hex head and they are working great. Has been mounted for several months now with no issues. Simpson makes great products. There ya go. July 11, 2016
Rated 5.0 out of 5.0 by Excellent Choice The ability to adjust the bracket is a great option . Quality of product is excellent. I needed a bracket that would keep the 4X4 off the ground and away from standing water. This bracket fit the bill perfect. Would recommend product to anyone. August 30, 2016
Rated 5.0 out of 5.0 by Job done right... If you are going to take the time & money to do a job, there is absolutely no reason not to do it right the first time...this post base does just that. To truly complete your project, plan on building post base trim - much better appearance than seeing those steel bases. July 3, 2016
Rated 4.0 out of 5.0 by Worked well... not sure what is adjustable Mounted this to the bottom of wooden post so it wouldn't be sitting directly on the ground. Worked fine. August 15, 2016
Rated 5.0 out of 5.0 by Adjustable base is solid They were easy to install made installing posts pleasant. I had a easy time installing posts plus they were raised one inch off the floor. July 19, 2016
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