Top 10 Best 4x4 fence post bracket in 2026

Last Updated - 6/15/2026

🏆Best Choice

AXWHYS

AXWHYS 4x4 Post Base 8 Pcs, (Inner Size 3.6x3.6) Post Anchors, 13GA Thick Solid Steel & Black Powder Coated,Deck Post Brackets Support Deck Base Plate Pergola Brackets Fence Kit Mailbox Mount…

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Material Of 4x4 Post Base: Made of Solid Steel, Black Powder Coated, Rustproof and Strong.
•Deck Post Base： Used to support porch railings, pergolas, gazebos, fences, deck brackets, post brackets and mailbox post brackets.
•Unique design: There is a partition at the bottom of the 4x4 post base, which is designed to be completely separated from the ground. Long term use will not cause the wood to rot due to rain. There is a small square box in the middle of base to make it more stable
•Screws & Anchors Supplied : A wrench. 48 x expansion anchors for concrete floors,48 socket head wood screws for wood floors, 64 Phillips head self-tapping screws for 4x4 post fixation.All screws are inserted inside the base.
•After Sales---If you have any installation questions or other problems. Feel free to contact us.

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$69.99

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AXWHYS

AXWHYS 4×4 Post Base 4 Pcs, (Inner Size 3.6"x3.6") Post Brackets, Heavy Duty Black Metal Powder-Coated Thick Steel Post Anchor Outdoor for Support Deck Base Plate Pergola Brackets Fence Kit

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Solid Steel - The post bracket of this column is made from solid steel. Black premium powder coating. Absolutely rustproof.
•4x 4 Post Base---For standard 4x4 posts (actual inner dimensions 3.6"x 3.6"). At 5.5 inches high, it is very firmly attached to the ground whether it is used for wood or concrete floors.
•Footprint Design --- Designed for small base areas. Perfect for backyard gazebos, deck supports, porch railings, handrails and post mounts and mailbox post mounts.
•Unique design: There is a partition at the bottom of the 4x4 post base, which is designed to be completely separated from the ground. Long term use will not cause the wood to rot due to rain. There is a small square box in the middle of base to make it more stable
•Supplied With Accessories---A wrench. 16 expansion anchors for concrete floors, 16 socket head wood screws for wood floors, 32 Phillips head self-tapping screws for 4x4 post fixation.All screws are inserted inside the base.

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$34.99

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XYADX

XYADX 24 inch Fence Post Anchor Ground Spike Heavy Duty Metal Black Powder Coated Fence Stakes Post Base, 4x4 Inch (Inner Size 3.6"x3.6"), Pack of 4

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Durable and Rust-Resistant: XYADX fence post anchors is forged from 14-gauge high-strength steel for strength and durability. The surface is covered with a scratch-resistant black powder coating that effectively resists cracking, flaking and rusting
•No-Dig Installation: Drive directly into soil without digging holes or pouring concrete. (Tip: Insert a temporary 3.6"x3.6" wood block while hammering to protect the anchor.) Simply tighten the included hardware for a secure hold
•Multi Purpose Deck Railing Pack: The fence post anchor is widely used in our daily life. Such as fences, shed supports, mailboxes posts, pergola columns, flagpoles, decking, timber frames, Lamp posts, signposts, Lamp posts, banners, and more
•Protecting Wooden Posts: Without the need to dig holes or pour concrete, the strong duty Metal Fence Stakes is supports the fence and mailbox posts. Your fence posts or mailbox will last a lot longer because the wooden post is in contact with metal Fence Stakes Post Base rather than soft (sometimes wet) earth. Metal Fence Stakes Post Base is highly used for protecting wooden posts
•What In Fence Post Anchor: 24-foot individual fence anchors with 2 tightening screws and locking nuts are included in the fencing stakes package for each ground spike. we are committed to offer products for our customers in lawn and patio for long time

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$40.98

$55.19

-26%

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QZER

4x4 Post Base 2 Pcs, Heavy Duty Post Anchor with Anti-Corrosive Partition, Inner Size 3.5"x3.5", 13 Gauge Thick Solid Steel, Rust-Proof Powder-Coated Wood Fence Post Brackets for Support Deck, Pergola

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•4×4 Post Base 4 Pcs：decorative post base internal dimensions 3.5"x3.5",Up to 5.5in in height,With expansion screws,Optional fixing to concrete or wood floors,solid and dependable
•Deck Post Anchor: Used to support porch railings, pergolas, gazebos, fences, deck brackets, post brackets and mailbox post brackets
•Bottom Partition Design：There is a partition at the bottom of the post base, which is separation of the stake from the ground. Long-term use will not cause the wood to rot due to rainwater
•Complete with Accessories：Each post base accessories contain a wrench,8 expansion screws for concrete floors or wooden floor , 16 socket head wood screws for wood post
•Quality Materials:The 4X4 post bracket is made of high-quality steel with high-strength welded structure and black outdoor rust-resistant coating, which is sturdy and durable

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$27.99

$29.99

-7%

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GBGS

8 Pcs 4" x 4" Strap Post Ties,14 Gauge(Thick 2 mm) Black Deck Fence Pole Tie Bracket for 4x4 Post

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Black Strap Post Ties Bracket for 4x4 Post.
•Carbon steel Q235B. The deck tension tie features a powder coating finish
•Prepunched hole diameter(2 kinds): φ4mm（5pcs); φ10mm（2pcs).（Screws not included）
•The Deck Post Tie products are used to attach 4x4 vertical posts to the side of stringers, rims or other wood members
•Package:8 x Black Strap Post Ties

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$22.99

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AOSTD

4x4 Post Base 4PCS, Inner Size 3.5x3.5 Inch Fence Post Anchor, Rust-Proof Heavy Duty Metal Black Powder-Coated Railing Post Brackets, for Support Deck, Pergola, Includes Screws

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Premium Construction: Crafted from 2.2mm solid steel with a black powder coating, our post base ensures durability and rust resistance, providing long-lasting reliability in any weather conditions.
•Versatile Compatibility: Designed to accommodate actual 3.5x3.5 inch wood posts on wood or concrete floors, our post base provides stable support for various applications such as gazebos, decks, and porch railings.
•Innovative Footprint Design: Featuring a unique bottom partition, our 4x4 post base prevents wood rot while maximizing stability without sacrificing space.
•Comprehensive Accessories: Each set of deck post base includes a wrench, 16 expansion anchors for concrete,and 32 self-tapping screws, ensuring hassle-free installation and secure attachment.
•Easy Installation: You can quickly secure wood posts with our post base following the instructions in the user manual we provide, saving you time and effort.

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$42.99

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GZQIUYI

GZQIUYI 8 PCS Heavy Duty Metal 4x4 Post Brackets, 12 Gauge 4" x 4" Strap Post Ties, Thick 2.55 mm Black Powder Coated Steel Strap Ties for Wood Deck Fence & Pergola (Screws Not Included)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Industrial-Grade Construction：Forged from 2.55mm Q235B carbon steel with triple-layer epoxy-polyester coating, these brackets withstand 500+ lbs load and resist rust in coastal/high-humidity environment
•Precision Fit & Multi-Screw Compatibility：3.5" inner dimension snugly fits standard 4x4 posts (actual 3.5"x3.5"), with 5x ø4.2mm + 2x ø10mm pre-drilled holes for M4/M10 screws or structural bolts
•5-Minute Tool-Free Installation：U-shaped design allows side-mounting to rim joists/stringers; laser-etched drilling guides eliminate measurement errors – no specialized tools required
•All-Weather Durability：Electrostatic coating withstands -40°F to 120°F temperature swings and UV exposure, ideal for outdoor decks, garden fences, and pergolas
•Complete 8-Pack Value：Includes 8 brackets (2 per post for front/rear reinforcement) – sufficient to secure 4 structural posts in residential DIY projects

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$24.90

$26.46

-6%

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Zhupoub

4 Pcs Post Anchor Brackets Kit for 4x4 Post Bracket, Heavy Duty Wood Fence Deck Tough Post Anchor Base Brackets for Deck Supports, Porch Railings, Handrails and Post Holders,Deck Railing Mailbox

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Adjustable half-column base to accommodate different sizes of wooden columns, such as 1.5 "x1.5", 2 "x2", 2 "x4", 4 "x4", etc
•Product Size: 1.37in x 1.51in x 5in, Thickness: 2.8 mm;Hole diameter (2 types): φ0.25in (3 pcs)，φ0.3in (2 pcs)
•Material: Carbon steel , hot dip galvanized finished,to prevent rusting and withstand the elements
•Universal design,Perfect for deck supports, porch railing, handrails and post holders. Used to reinforce new post-base connections, such as braced carports, patio covers,mailboxes,fence,decks and other structures
•Package content: 4 pcs post base guards bracket and screws

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$14.99

$15.99

-6%

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AOKLIT

AOKLIT 8 Pcs Black Strap Post Ties Brackets 4x4, Thickness 2mm(14 Gauge) Deck Fence Post Bracket for Gazebo Mounting Bracket

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•8 PCS deck post brackets Set - Heavy duty wooden deck fence column tie for 4x4 columns, internal dimensions: 3 1/2 x 3 1/2 inches, thickness 2 millimeters
•High Quality Finish - The fence post brackets feature a sleek, black finish, protection against rust and corrosion, ensuring long-term durability
•Robust & Long Lasting - Crafted from high quality Carbon steel materials, our deck post brackets ensure exceptional strength and durability. Made to withstand the elements and heavy loads, these brackets are built to last
•Easy to Use - Simplify your installation process with our Black Strap Post Ties Brackets, these brackets make it easy to secure 4x4 wooden posts bracket without the need for specialized tools or techniques
•Wide Application Range - Suitable for multiple applications, these brackets are perfect for securing 4x4 wooden posts in various settings. Whether you’re working on a fence, deck, or gazebo, they offer a reliable and adaptable solution for your construction needs

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$18.99

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DIYIIRON

8 Pcs Adjustable 4x4 Wood Fence Pergola Post Base Brackets,Heavy Duty Post Anchor Base Brackets for Deck Pergola Railing Mailbox

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Function: Our adjustable wood fence pergola post base brackets are used to repair and strengthen the pergola post. Our Inner diameter of the post base is 3.55 inch, use for 4 x 4 Post (Actual 3.5" wood post)
•Wide Use : Our adjustable pergola bracket kit can repair and strengthen the post.Suitable for many places that need to anchor wood posts,such as porch,deck post supports,mailbox posts,terrace wooden fence and sign,etc
•Use: Each wood fence pergola post base brackets have several predrilled holes, you can easily use it to fixed on a wood post or decks and concrete ground.Can be reused
•Material: Those post bracket are made of solid steel. The pergola bracket is powder-coated steel, which has great rustproof and waterproof performance,strong and durable, ensure long-lasting usage under various outdoor conditions

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$31.99

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