AXWHYS 4x4 Post Base – Heavy-Duty Black Powder-Coated Brackets (4 Pcs), Inner 3.6x3.6, Outdoor Deck and Fence

Overview

Upgrade outdoor projects with AXWHYS 4x4 Post Base brackets, designed to anchor posts securely while resisting the elements. Built for durability and ease of installation, these bases support a range of outdoor structures from decks to fences, delivering steady balance and clean lines to your build.

Solid steel construction with weather-ready finish

The post brackets are crafted from solid steel and finished with a premium black powder coating. This combination provides robust rigidity and a weather-ready surface that stands up to rain, sun, and temperature changes without sacrificing appearance.

• Premium black powder coating for rust resistance in outdoor environments
• Solid steel construction for long-term strength

Designed for standard 4x4 posts

The inner dimensions measure 3.6 x 3.6 inches, matching typical 4x4 posts. At a height of 5.5 inches, the base offers solid ground contact for wood or concrete floors while keeping a compact footprint.

• Inner size compatible with standard 4x4 posts
• 5.5-inch tall base for stable attachment

Smart footprint and ground-separation design

The bases feature a small footprint and a distinctive ground-separation design that minimizes direct contact with moisture on the wood. A central square box enhances stability, helping distributed loads stay balanced over time.

• Compact base footprint suitable for tight spaces
• Ground-separation design helps reduce wood exposure to rain
• Central stability feature for consistent performance

What’s included and how to install

Each pack comes with practical hardware to complete quick installations: a wrench, 16 expansion anchors for concrete, 16 socket head wood screws, and 32 self-tapping screws for 4x4 post fixation. All screws are stored inside the base for convenience.

• One wrench for easy setup
• 16 concrete expansion anchors for solid foundations
• 16 wood screws for wooden floors or decks
• 32 self-tapping screws for fast 4x4 attachment

Ideal applications

Use these post bases to anchor supports for backyard gazebos, deck supports, porch railings, handrails, fence posts, and mailbox mounts. They offer a sturdy base that complements outdoor aesthetics while maintaining a clean line of sight and structure.