4 x 4 Post Base 5 PCS - Heavy Duty 3.6in x 3.6in Deck Post Brackets

In this review the focus is on a practical, no-frills solution for anchoring 4 x 4 posts to concrete: a set of five black powder-coated post bases with an inner size of 3.6in x 3.6in. The bottom line is that this kit is aimed at homeowners and DIYers who need a straightforward way to secure decking posts, pergola supports, or railing posts to existing concrete pads. The single biggest reason to buy is the included hardware and heavy-gauge construction that lets installers mount posts quickly without sourcing separate anchors or screws.

Key Features

• Heavy-gauge steel: Made from 14 gauge steel for a sturdy bracket that holds 4 x 4 posts with reduced flex compared with thinner options.
• Rust-resistant finish: Black powder-coat helps the brackets resist corrosion and keeps them looking neat on exposed decks or garden installations.
• Complete installation kit: The set ships with expansion bolts, self-tapping screws and a wrench so users can mount the bases to concrete or wood without extra trips to the store.
• Standard inner fit: The 3.6in x 3.6in inner size matches the common dry 4 x 4 post dimension used in many deck and railing projects.
• Versatile use: Suited for decking handrails, pergolas, mailbox posts and garden fences where posts sit on top of a concrete or wooden base.

Who It's For

This product is best for homeowners, renters with permission for small upgrades, and weekend DIYers who need an economical way to anchor and finish 4 x 4 posts on existing concrete pads or wooden bases. Because the kit includes anchors and screws, it removes the hassle of finding compatible fasteners and speeds up small outdoor projects.

It is not the right choice for structures that require lateral bracing or resistance to rotation without a top restraint; the manufacturer notes these post bases do not prevent rotation for unbraced or non-top-supported installations such as freestanding fences or carports.

Pros & Cons

Pros

• Includes 20 expansion bolts and 40 self-tapping screws plus a wrench, so installation is complete out of the box.
• 14 gauge steel and powder-coat offer solid durability and corrosion resistance for outdoor use.
• Inner size fits the common 3.6in x 3.6in dry 4 x 4 posts, ensuring a snug, standard fit.
• Good value for money for small projects when buying a 5 PCS pack.

Cons

• Some customers report mixed impressions of build quality; a few find the metal lighter than expected for heavy-duty applications.
• Not intended to prevent post rotation for unbraced, non-top-supported structures, so additional bracing may be required.

Specifications

Brand	Likeem
Material	14 gauge powder coated steel
Inner size	3.6in x 3.6in
Product size (box)	6.8 x 5.6 x 3.8 in
Quantity	5 PCS
Included hardware	20 expansion bolts (3/8), 40 self-tapping screws, 1 wrench

Our Verdict

This set of five post bases is a practical, cost-effective choice for homeowners and DIY installers who need to secure 4 x 4 posts to concrete or wood quickly. The included anchors and 14 gauge construction deliver good value for common deck, pergola and railing tasks, though anyone needing high lateral resistance or heavy structural support should plan for additional bracing or a different mounting system.

Frequently Asked Questions

Will these fit standard 4 x 4 posts?
Yes; the inner size is 3.6in x 3.6in, which fits the typical dry 4 x 4 post dimension used in decking and railing work.

Are anchors and screws included?
Yes; the package includes 20 expansion bolts (3/8), 40 self-tapping screws and a wrench so you can fasten the bases to concrete or wood.

Can these prevent post rotation for freestanding fences?
No; the bases are not designed to provide adequate resistance to rotation for non-top-supported installations, so additional bracing is required for freestanding structures.