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8-Pack 4x4 Post Base Brackets for Concrete - 3.5'x3.5' Wood Post Anchor - Deck, Fence, Pergola Raised Mount with Hardware - Rust-Resistant Black Steel

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$69.99

$ 33 .99 $33.99

In Stock

1.NumberofItems:4


  • Perfect 3.5"x3.5" Fit:Designed for standard US 4x4 lumber (true size 3.5"x3.5") . Prevents wobbling & returns – engineered for snug insertion of pressure-treated pine, cedar, or composite posts.
  • Prevent Rot:Raised base lifts wood posts above concrete/wood floor. Blocks moisture damage from rain, sprinklers, or snow – critical for decks, fences, and outdoor structures.
  • Heavy-Duty Steel: 2mm thick solid steel with full welds supports 200+ lbs. Black powder-coated finish resists rust in coastal/high-humidity areas. Outlasts flimsy zinc-plated competitors.
  • 3-in-1 Mounting Kit: Includes concrete wedge anchors (M8x60mm), wood deck screws (#14x2"), and self-tapping post screws. Pre-drilled holes align perfectly – no drilling.
  • Versatile: Ideal for deck footings, privacy fences, pergola columns, mailbox posts, and gazebos. Friendly design for residential/commercial use.



Product Description

4x4 post bracket
4x4 deck post base
4x4 post base

Durable and Reliable

This unique 4x4 post base utilizes a spacer design that elevates wood posts, preventing ground moisture and reducing rot, extending post life and enhancing safety.

Crafted from 2mm solid steel with robust welding and a corrosion-resistant black powder coat, its smooth finish ensures longevity and style.

pergola brackets 4x4
4x4 post brackets

Hairy Kushna
Reviewed in the United States on March 25, 2025
It works great!
Adrianna S.
Reviewed in the United States on January 25, 2025
A good product, it has enough strength and is well made, it comes with its screws.
nitefly
Reviewed in the United States on September 5, 2024
This bracket holds a 4 x 4 post very securely. It fit the post well.The holes in the bracket were too small for my concrete anchors, so I had to drill them out bigger. If you use the anchors that came with the bracket, I'm sure you would not have that problem.These are heavy duty steel. They are somewhat heavy to carry. They will hold the wood post for my fence for years to come.For how ample this bracket is, the price is reasonable.
Mr
Reviewed in the United States on December 23, 2024
Excellent, good quality item and very strong, thank you👍
Gilford
Reviewed in the United States on December 20, 2024
Worked exactly as i had imagined.Bolts could have been longer but did the job.
Impressions & Observations
Reviewed in the United States on December 17, 2024
The supports are extremely solid and sturdy, however, there was an awful lot of wiggle room once I inserted the wood post. I spent a lot of time shimming and leveling it before bolting it in place. My hope was that the post base would be snug and secure, eliminating the need for all that extra shimming and leveling. I then went to put a PVC post sleeve over top of the wooden post, and it was unable to fit around these bases because they were just too large. No matter what I tried, I could not get the post sleeves to fit. Unfortunately, I had to get different bases to finish my project. On the plus side, the kit does come with all of the bolts and hardware you need to securely mount these.
Brinks
Reviewed in the United States on November 6, 2024
This set of 4x4 anchor plates is perfect for securely mounting posts on our deck! They fit the 4x4 posts well and provide excellent stability, ensuring everything stays in place even in rough weather. The plates are sturdy and well-made, giving the whole deck a solid feel, and the installation was straightforward with all the necessary holes for easy mounting. These anchor plates are a fantastic option for anyone looking to reinforce their deck or other outdoor structures—they add reliable support and durability. Highly recommended for a great combination of quality and ease of use!
Revilo
Reviewed in the United States on November 28, 2024
Sturdy, well constructed post bases. I will be using them to extend a fence and to set a new gate post over concrete
Patrick
Reviewed in Canada on October 24, 2024
J'ai reçu ma commande le 17 août 2024. J'ai posé les bases dans la même semaine. J'ai pris cette photo le 22 octobre, même pas un mois après l'installation et j'ai déjà de la rouille qui veut sortir au travers le fini sur 2 bases du lot. C'est totalement INACCEPTABLE! C'est se moquer royalement du consommateur. C'est dommage, car la robustesse et la conception sont remarquable, même si j'en avais une qui n'était pas soudée d'équerre par rapport à la base. Il suffirait que la compagnie améliore la qualité du revêtement et/ou métal, et le produit serait exemplaire.je ne rachèterai pas ce produit et le déconseille fortement.
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