Simpson Strong Tie ABW44Z Adjustable Post Base 4x4

Product Description

The SIMPSON STRONG TIE ABW44Z is an adjustable post base designed to anchor 4-inch x 4-inch posts to concrete foundations with a built-in 1-inch standoff elevation. That standoff keeps the post end-grain off the slab surface, reducing moisture contact and slowing decay at the base. Fabricated from 16-gauge steel and finished with Zmax galvanization, this base resists corrosion in wet and outdoor environments. The design incorporates geometry that improves uplift load resistance, contributing to structural performance under wind and lateral loads. Licensed contractors and structural carpenters install this base in decks, pergolas, carports, and similar post-frame assemblies.

The ABW44Z is suited for residential and light commercial post-frame construction where concrete footings or slabs serve as the bearing surface. Typical applications include deck posts, pergola columns, carport uprights, and covered patio structures. The base is sold in a package quantity of 10 units, making it practical for multi-post projects. No specific compatible model list is provided in the available data, but it is designed for standard dimensional 4x4 lumber posts anchored to poured concrete or masonry.

Key Features

• 1-inch post elevation above concrete reduces end-grain moisture exposure and decay risk
• 16-gauge steel construction provides rigidity and load-bearing strength
• Zmax galvanized finish for corrosion resistance in outdoor and high-moisture environments
• Enhanced uplift load capacity geometry for structural integrity under wind loading
• Accepts a 1/2-inch anchor bolt for concrete attachment
• Compatible fastening options include 10D common nails or 9 x 1.5-inch Strong Drive SD screws

Compatibility

Designed as an OEM-style adjustable post base for standard 4-inch x 4-inch dimensional lumber posts set on poured concrete or masonry slab foundations.

Installation Notes

Installation is performed by licensed contractors or structural carpenters following applicable building codes, including IBC and local jurisdictional requirements. Set the 1/2-inch anchor bolt in cured concrete before positioning the base plate; confirm anchor embedment depth meets the project engineer or code requirement before fastening. Secure the post with the specified nails or Strong Drive SD screws through all provided fastener holes to achieve rated load values. Do not substitute fastener types or quantities, as load ratings are based on the specified fastening schedule.

Technical Specifications

• Post Size: 4 inches x 4 inches
• Post Standoff Elevation: 1 inch above concrete
• Material: 16-gauge steel
• Finish: Zmax galvanized
• Anchor Bolt Size: 1/2 inch
• Fastener Options: 10D common nails or 9 x 1.5-inch Strong Drive SD screws
• Package Quantity: 10 per package
• Weight: 14 pounds (package)
• Unit of Measure: EA

Standard Information

• Brand: SIMPSON STRONG TIE
• Manufacturer Part Number: ABW44Z