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ABA 4-in x 4-in ZMAX Wood to concrete (retrofit) Base

Ratings & Reviews for Simpson Strong-Tie ABA 4-in x 4-in ZMAX Wood to concrete (retrofit) Base

4.7
217
Review
 4.7 out of 5
217 Reviews


95% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise these post anchors for their heavy-duty construction, rock-solid stability, and ability to prevent rot by elevating posts off concrete. The ZMAX coating resists corrosion effectively, and the pre-drilled holes with split-side design allow easy alignment during installation. Most reviewers highlight durability and code compliance as key strengths, calling them the best choice for decks and outdoor structures. A few mention needing additional washers or note alignment requires patience, but these minor concerns barely diminish the strong consensus that performance justifies the investment for critical structural applications.

Customer review summary generated by AI, including incentivized reviews.
217 Customer Reviews

Awesome install features!

Would Recommend

I loved that these had split sides so I could level mo posts one way and then secured one side while still allowing movement side to side.

October 28, 2022
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Convenient to install, and sturdy, but flexible.

Would Recommend

These are relatively easy to install and offer some flexibility post installation. I liked that these could be moved a bit if they weren't square. They are supposed to help prevent rot, but it's a bit soon to tell for me. You need large bolts to use these.

October 25, 2022
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Response from Simpson Strong-Tie

​Hi D Ezy, this is Colin from Simpson Strong-Tie. The ABA44Z design helps prevent rot at the bottom of the post by having a built-in 1" standoff...

Simpson Strong-TieOctober 26, 2022

SimpsonStrongTie

Best post base

This base is best for allowing adjustments to post location. Drill into concrete and use Read Head to hold in place

October 25, 2022
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Up to code

Would Recommend

Simple but effective. Meets the code requirements for my region, and holds fast.

October 25, 2022
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Works as expected

Works as expected, no concerns or issues. I would purchase these again

October 25, 2022
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Good product

Would Recommend

Easy to use and very strong. Did exactly what I hoped for

October 24, 2022
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4 x 4 post base

Would Recommend

Pretty straightforward good construction no flaws didn’t come with a washer so make sure you have one.

October 23, 2022
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Perfect to eliminate ground contact to stop rot

Would Recommend

Sturdy when mounting post to concrete. Keeps wood off concrete surface eliminating any opportunity for rot!

October 20, 2022
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Zmax

Would Recommend

I used this on a flip to replace old worn out wood that wasn't attached to the deck. Easy to use with a good design

October 18, 2022
Verified PurchaserVerified Pro
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Post connections

Would Recommend

Base work well for attaching post to concrete. Used this base with concrete pier blocks on shed construction.

September 13, 2022
Verified Purchaser
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Great for posts

Would Recommend

Used these to set posts for decking and they worked great. Not much to say, they are study, good build quality and did it's job

August 15, 2022
Verified Purchaser
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