The Simpson PB66R 6x6 Rough Cut Galvanized Post Base is a heavy-duty structural connector from Simpson engineered to create a secure, code-worthy connection between a 6x6 rough cut post or column and a concrete foundation. Built for top-supported structures such as decks and patio covers, this post base combines 12-gauge steel construction with a Zinc Galvanized G90 coating to deliver lasting strength and corrosion resistance in demanding outdoor environments.

Key Features

• Designed for 6x6 rough cut posts and columns - fits rough cut lumber dimensions precisely, eliminating guesswork and ensuring a tight, structurally sound connection at the foundation.
• Zinc Galvanized G90 coating - provides reliable corrosion resistance for outdoor installations and compatibility with pressure-treated wood, helping the connector hold up over the long term.
• 12-gauge steel construction - delivers dependable structural strength suited for load-bearing applications like deck post-to-foundation connections and patio cover column bases.
• Compatible with 0.162" x 3-1/2" nails or 1/2" bolts - gives installers flexibility to choose the fastening method that best suits project requirements and local code specifications.
• Intended for top-supported structures only - purpose-built for decks, patio covers, and similar installations, keeping your project aligned with approved structural applications.

Why This Product

• Trusted brand, domestic production - engineered by Simpson, a name long associated with structural connectors, and produced in the United States, supporting consistent manufacturing standards.
• Built for real outdoor conditions - the G90 galvanized coating guards against corrosion in exposed settings and when paired with treated lumber, reducing the risk of premature connector failure on decks and patio structures.
• Versatile fastener compatibility - the choice between nail and bolt installation means this post base adapts to different jobsite tools and code requirements without requiring additional hardware.
• Purpose-matched sizing for rough cut lumber - unlike post bases sized for dimensional lumber, the PB66R is specifically dimensioned for rough cut 6x6 posts, so the fit is correct from the start with no shimming or workarounds needed.

Specifications

• Model Number: PB66R
• Width: 6 in.
• Length: 5-1/4 in.
• Gauge: 12
• Coating/Material: Zinc Galvanized, G90
• Fastener Options: 0.162" x 3-1/2" nails or 1/2" bolts
• Country of Origin: United States

Approved Applications

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

Frequently Asked Questions

What post size is the PB66R designed to fit?

The PB66R is designed specifically for 6x6 rough cut posts or columns, with a width of 6 inches and a length of 5-1/4 inches to accommodate rough cut lumber dimensions.

What fasteners are compatible with the PB66R post base?

The PB66R can be installed using either 0.162" x 3-1/2" nails or 1/2" bolts, giving installers flexibility based on project requirements and local code specifications.

Is the PB66R suitable for use with pressure-treated wood outdoors?

Yes. The PB66R features a Zinc Galvanized G90 coating, which provides corrosion resistance appropriate for outdoor applications and use with treated wood.

Can the PB66R be used for fences or unbraced carports?

No. Post bases do not provide adequate resistance to prevent members from rotating about the base and therefore are not recommended for non-top-supported installations such as fences or unbraced carports. The PB66R is intended for top-supported structures only, such as decks and patio covers.

Note: Product dimensions and/or screw or bolt holes may differ from picture. A 2" minimum sidecover is required to obtain the full load.