AXWHYS 4x4 Post Base Set | 4 Pcs Heavy-Duty Steel Brackets for Wood or Concrete

Rugged, reliable mounting for outdoor posts

AXWHYS 4x4 Post Base Set is engineered to anchor 4x4 posts with a focus on durability and easy installation. The solid steel construction is finished with a black powder coating that resists rust and weathering, helping you create sturdy outdoor structures without worrying about quick wear.

The actual inner dimensions are 3.6 inches by 3.6 inches, designed to fit standard 4x4 posts. At 5.5 inches tall, the base sits firmly on ground, whether set on wood or concrete floors. The footprint is compact, leaving room for clean alignment and neat spacing in fences, decks, gazebos, and mailboxes.

Why this post base stands out

• Solid steel construction for long-lasting strength under outdoor loads
• Inner opening sized for standard 4x4 posts (3.6 x 3.6) and a ready-to-mount height of 5.5 inches
• Compact footprint designed to minimize base intrusion on decking or porch areas
• Bottom partition creates a barrier between the ground and the post, helping protect against moisture exposure over time
• Integrated design with hidden screw provisions keeps hardware tidy and reduces installation time

Practical uses and installation ideas

• Decks, fences, handrails, and pergola supports benefit from a stable anchor point
• Great for backyard gazebos, porch railings, or mailbox post mounts where a neat, robust base matters

What’s included and how to install

Each set comes with a wrench, 16 concrete anchors, 16 wood screws, 32 self-tapping screws, all stored inside the base for convenience. The design keeps screws close at hand and protects them from the elements.

To install, position the base, align the post, secure with the appropriate anchors for your surface, and tighten. The ground partition and a central square box add stability for longer-term performance, while the powder coating guards against rust and weathering.