ZMAX Simpson Strong-Tie Standard Post Base 4" x 4" (Model PB44Z)

The ZMAX Simpson Strong-Tie Standard Post Base 4" x 4" (PB44Z) is engineered for dependable post-to-concrete connections. Crafted from 12-gauge alloy steel and coated with a ZMAX® finish, this post base offers exceptional corrosion resistance and structural strength. Its design allows it to embed in wet concrete and install flush with the surface, making it ideal for decks, patio covers, pergolas and other top-supported structures.

Simpson Strong-Tie quality ensures that your posts stay stable under load. The embossment in the seat increases load capacity, while stress-relief holes beneath the base resist tearing during uplift forces. Pre-drilled holes accommodate 16d common nails for quick and secure fastening to the post.

Key Features

• ZMAX® galvanized finish for superior corrosion protection
• Embeds in wet concrete and installs flush with slab surface
• Embossed seat area increases connector strength
• Stress-relief holes under base resist tearing during loading
• Designed for nominal 4" × 4" posts (1½" × 3½" actual dimensions)
• Made from 12-gauge alloy steel for maximum durability
• Pre-drilled nail holes for 16d common nails (not for non-top-supported installations)

⚠️ WARNING: This product can expose you to Tetrabromobisphenol A known to the State of California to cause cancer and Epichlorohydrin known to cause birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.