TIE ZMAX 6" x 6" Galvanized Adjustable Post Base

Adjustable 6x6 Post Base – Simpson Strong-Tie ZMAX Galvanized Steel

What It Is

This is a heavy-gauge steel adjustable post base designed to secure a 6×6 wood post or column to an existing concrete foundation or slab. It features a ZMAX® triple-galvanized finish, which provides enhanced corrosion resistance for outdoor and treated-wood applications (e.g., decks, pergolas, patio covers).

Key Features

• 6 in. × 6 in. nominal post size: Fits standard 6×6 wood posts.
• Adjustable design: The anchor hole is slotted so you can adjust the base position slightly during installation to align the post properly.
• 1 in. standoff: Keeps the bottom of the post elevated off the concrete surface to help prevent moisture-related rot. This standoff is often required by code for exposed structures.
• ZMAX® galvanization: Durable galvanized coating that resists rust and corrosion better than standard plating, ideal for outdoor use and contact with treated lumber.
• Steel construction: Provides a strong, reliable connection between the post and foundation.

Typical Usage

This post base is used wherever a vertical wood post must be anchored to concrete — including:

• Deck support posts
• Pergola or gazebo columns
• Porch or patio roof supports
• Fencing or structural framing attached to a slab

It’s specifically designed as a retrofit or new-construction connector, making it easier to secure posts after the concrete has cured.