Simpson Strong-Tie CPT44Z 89mm x 89mm Concealed Post Base Pre-Galvanised

Part Number: CPT44Z
Pack Size: 1 Unit

Concealed Timber Post Base with 25mm Standoff for a Clean Architectural Finish

The Simpson Strong-Tie CPT44Z Concealed Post Base is designed to deliver both aesthetics and performance, offering a hidden fixing solution for structural timber posts. With a 25mm standoff height, it lifts the post above concrete surfaces to minimise moisture exposure and decay, while maintaining a clean, seamless appearance ideal for modern timber architecture.

Key Features

• Concealed design enhances visual appeal by hiding fixings

• 25mm standoff prevents timber post base rot caused by ground moisture

• Suitable for minimum post sizes from 89mm x 89mm to 100mm x 100mm

• Supplied complete with knife plate, standoff base, and 3 dowels

• Can be cast into wet concrete or retrofitted to existing bases

Benefits

• Architectural-grade finish ideal for exposed timber structures

• Promotes longer timber life by keeping post ends dry

• Suitable for residential and commercial applications

• Provides solid load support while maintaining a minimal visual footprint

Dimensions

• A (Post Width): 89mm

• B (Post Depth): 89mm

• Compatible Post Size Range: 89mm to 100mm

Material Specification

• Material: Pre-galvanised steel

• Finish: Zinc-coated for corrosion resistance

• Recommended for interior and sheltered exterior use

Items Included

• 1 x Knife Plate

• 1 x Standoff Base

• 3 x Steel Dowels

Typical Applications

• Timber columns in patios and verandas

• Architectural pergolas and shelters

• High-end decking and outdoor structures

• Timber framing where visual detailing is critical

Important Note

Lateral restraint is required when using this product.