The Simpson PB44 4x4 Galvanized Post Base is a heavy-duty structural connector from Simpson designed to anchor a 4x4 post or column securely to a concrete foundation - making it a reliable choice for deck construction, patio covers, and other top-supported structures. Fabricated from 12-gauge steel with a G90 zinc galvanized finish, this non-standoff post base embeds directly into wet concrete and sits flush with the surface, delivering a clean, professional installation that holds up under real-world loading conditions.

Key Features

• Embeds in wet concrete after pour and installs flush with the concrete surface - allows the base to be set during the pour for a clean, low-profile finish that keeps post connections tight and surface-level.
• Embossment in the seat of the base - adds increased strength right where the post meets the connector, improving the overall rigidity of the connection.
• Stress relief holes under the base - engineered to resist tearing during loading, these holes help protect the connector's structural integrity under the forces a post connection experiences over time.
• 12-gauge steel construction - provides the thickness and durability needed for structural post base applications in demanding outdoor environments.
• G90 zinc galvanized finish - delivers extra corrosion resistance, helping the connector stand up to moisture and the elements commonly encountered in deck and patio cover installations.
• Installs with 16d common nails - uses a widely available, standard fastener type so there is no need for specialized hardware to complete the installation.

Why This Product

• Built for wet-set concrete applications - the PB44 is specifically designed to embed during the pour and cure flush with the surface, eliminating the need for post-pour anchoring hardware and giving you a cleaner, more integrated foundation connection for deck posts and column bases.
• Structural design details that matter under load - both the embossment in the seat and the stress relief holes under the base are purposeful engineering features that work together to strengthen the connector and resist the tearing and stress that post base connections face in real use.
• Corrosion-resistant finish suited for outdoor structural use - the G90 zinc galvanized coating provides a meaningful level of protection against moisture and corrosion, which is especially important for post bases installed at grade level where exposure to the elements is constant.
• Straightforward installation with standard fasteners - compatible with 16d common nails and designed for a flush concrete install, this post base is a practical, no-guesswork solution for contractors and builders working on deck post connections and patio cover column bases.

Specifications

• Manufacturer Part Number (MPN): PB44
• Member Size: 4x4
• Gauge: 12
• Coating: Zinc Galvanized, G90
• Finish: Zinc Galvanized, G90
• Install With: 16d common nails (sold separately)
• Width: 3-9/16 in.
• Length: 3-1/4 in.
• Country of Origin: United States

Approved Applications

• Deck post connections to concrete foundations
• Patio cover post or column bases
• Other top-supported structural post installations

Frequently Asked Questions

What concrete installation method does the PB44 use?

The PB44 embeds in wet concrete after the pour and is designed to install flush with the concrete surface, providing a clean and secure connection at the base of the post.

What size post is the PB44 designed for?

The PB44 is designed for a nominal 4x4 post or column size.

What fasteners are used to install the PB44?

The PB44 is installed with 16d common nails.

Why does the PB44 have stress relief holes under the base?

The stress relief holes located under the base are specifically engineered to resist tearing during loading, enhancing the overall structural integrity of the connection under real-world conditions.

Note: Product dimensions and/or screw or bolt holes may differ from picture. Please see item description for specifications.