
The Story
Simpson Strong Tie Concealed Post Base Suits 90mm to 100mm Square Posts is designed for secure support of square posts, enhancing durability and reducing decay.
The Simpson Strong Tie Concealed Post Base is engineered to accommodate 90mm to 100mm square posts, providing a robust solution for various construction applications. With a 25mm standoff height, it effectively minimizes the risk of decay at the post end. This product can be cast-in-place or retrofitted using adhesive or mechanical anchors, ensuring versatile installation options. Constructed from heavier gauge carbon steel and finished with ZMAX® Galvanised, it offers a strong connection while maintaining a clean, concealed appearance. The CPT is suitable for both Glulam and solid sawn timber, and it includes all necessary pins and fasteners for installation. The 90mm size is also available in 316 Stainless Steel for environments prone to corrosion, such as coastal areas.
Features
- Suits 90mm to 100mm square posts
- 25mm standoff height to reduce decay at the post end
- Can be cast-in-place or retrofitted with adhesive or mechanical anchors
- Manufactured from 2.7mm carbon steel with ZMAX® Galvanised finish
- Includes all pins and fasteners required for installation
Specifications
| Dimensions (W x H x D) | 90mm x 146mm x 90mm |
| Weight | 0.95kg |
| Material | 2.7mm Carbon Steel with ZMAX® Galvanised Finish |
| Colour | Black |
| Model Number | CPT90Z |
| Volume/Size | 90mm |
Simpson Strong Tie Concealed Post Base Suits 90mm to 100mm Square Posts is a reliable choice for structural support.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Simpson Strong Tie Concealed Post Base Suits 90mm to 100mm Square Posts is designed for secure support of square posts, enhancing durability and reducing decay.
The Simpson Strong Tie Concealed Post Base is engineered to accommodate 90mm to 100mm square posts, providing a robust solution for various construction applications. With a 25mm standoff height, it effectively minimizes the risk of decay at the post end. This product can be cast-in-place or retrofitted using adhesive or mechanical anchors, ensuring versatile installation options. Constructed from heavier gauge carbon steel and finished with ZMAX® Galvanised, it offers a strong connection while maintaining a clean, concealed appearance. The CPT is suitable for both Glulam and solid sawn timber, and it includes all necessary pins and fasteners for installation. The 90mm size is also available in 316 Stainless Steel for environments prone to corrosion, such as coastal areas.
Features
- Suits 90mm to 100mm square posts
- 25mm standoff height to reduce decay at the post end
- Can be cast-in-place or retrofitted with adhesive or mechanical anchors
- Manufactured from 2.7mm carbon steel with ZMAX® Galvanised finish
- Includes all pins and fasteners required for installation
Specifications
| Dimensions (W x H x D) | 90mm x 146mm x 90mm |
| Weight | 0.95kg |
| Material | 2.7mm Carbon Steel with ZMAX® Galvanised Finish |
| Colour | Black |
| Model Number | CPT90Z |
| Volume/Size | 90mm |
Simpson Strong Tie Concealed Post Base Suits 90mm to 100mm Square Posts is a reliable choice for structural support.











