Simpson Strong-Tie Concealed Post Base Suits 90mm to 100mm Square Posts
Simpson Strong-Tie Concealed Post Base Suits 90mm to 100mm Square Posts
Simpson Strong-Tie Concealed Post Base Suits 90mm to 100mm Square Posts
Simpson Strong-Tie Concealed Post Base Suits 90mm to 100mm Square Posts

Simpson Strong-Tie Concealed Post Base Suits 90mm to 100mm Square Posts

$15.95 AUD
/
Tax included

🏆 Lowest Price Match | 🛡️ Secure Payment

The 25mm standoff height of the CPT Concealed Post Base helps reduce the potential for decay at the post end. This product is suitable for 90mm to 100mm square posts and can be cast-in-place or retrofitted using adhesive or mechanical anchors. All necessary pins and fasteners for installation are included. Manufactured from heavier gauge steel, it ensures a stronger connection and is finished with ZMAX® Galvanised for enhanced durability.

The CPT Concealed Post Base offers a clean, concealed look while providing a 25mm standoff height above concrete to help reduce the potential for decay to timber at the post end. Available in 90mm (Black or Stainless Steel), 115mm, 140mm, and 200mm sizes, the CPT forms part of the Simpson Strong-Tie concealed structural connector range, which combines structural strength with invisibility. The post support blade can be used as a template for drilling dowel holes. The black powder-coated base provides a modern appearance. Tested and load-rated engineering data are available. Suitable for Glulam and solid sawn timber, it can be installed with either mechanical or chemical anchors, depending on engineering specifications. The 90mm size is also available in 316 Stainless Steel for more corrosive environments such as coastal areas. When installing, use all specified fasteners. Post bases do not provide adequate resistance to prevent members from rotating about the base and therefore are not recommended for non-braced or non-top-supported installations. The holes in the CPT tabs are sized for 12mm diameter anchors, and for cast-in-place anchors, there should be 22mm (±3mm) of anchor above the top surface of the concrete.

Features

  • Reduces potential for decay at the post end
  • Includes all necessary pins and fasteners for installation
  • Available in multiple sizes and finishes
Builders Mitre 10 - West Hoxton

Available for pickup

Usually ready in 4 hours

Simpson Strong-Tie Concealed Post Base Suits 90mm to 100mm Square Posts

Available for pickup

Usually ready in 4 hours

Builders Mitre 10 - West Hoxton

Available for pickup

Usually ready in 4 hours

400 Fifteenth Avenue
Austral NSW 2179
Australia

+61296060349

Builders Mitre 10 - Kemps Creek

Available for pickup

Usually ready in 4 hours

9 Elizabeth Drive
Kemps Creek NSW 2178
Australia

+61298261328

Product Information & Support

Explore detailed product specifications, access comprehensive guides and documentation, review our warranty and return policies, and read authentic customer reviews. Everything you need to make an informed decision.

The 25mm standoff reduces the potential for decay at the post end|Suits 90mm to 100mm square posts|Can be cast-in-place or retrofitted with adhesive or mechanical anchors|All pins and fasteners needed for installation are included|Manufactured in heavier gauge steel for a stronger connection, finished with ZMAX® Galvanised|The CPT Concealed Post Base provides a clean, concealed look while providing a 25mm standoff height above concrete to help reduce the potential for decay to timber, at the post end. Available in 90mm (Black or Stainless Steel), 115mm, 140mm, and 200m sizes, the CPT forms part of Simpson Strong-Tie concealed structural connector range, which combines structural strength with invisibility. Manufactured in heavier gauge carbon steel for a stronger connection, base 2.7mm, plate 3.5mm, finished with ZMAX® Galvanised. The post support blade can be used as a template for location to drill dowel holes. Black powder coated base for a modern appearance. Tested and load-rated engineering data available. Suitable for Glulam and solid sawn timber. It can be installed with either mechanical or chemical anchors (dependent on engineering specifications). The 90 mm size is also available in 316 Stainless Steel for for more corrosive environments such as coastal areas. All pins and fasteners needed for installation are included.When Installing, use all specified fasteners. Post bases do not provide adequate resistance to prevent members from rotating about the base and therefore are not recommended for non‑braced or non‑top‑supported installations. Anchorage Options, The holes in the CPT tabs are sized for 12mm diameter anchors, for cast‑in‑place anchors, there should be 22mm (±3mm) of anchor above the top surface of the concrete.

Dimensions: W90 x D90 x H146mm

2.7mm - Carbon - Steel - with - Zmax - Galvanised - Finish

CPT90Z - Concealed - Post - Base - 90mm

Product Guides & Documentation

Access all essential guides and documentation for your product. Click on any link below to download the PDF file.

Need Help? If you have trouble downloading or viewing these documents, please contact our support team.

Warranty & Return Policy

Manufacturer's Warranty

All products are covered by a comprehensive 2-year manufacturer's warranty that protects against defects in materials and workmanship.

  • Manufacturing defects and material failures
  • Component failures under normal use
  • Workmanship issues

30-Day Return Policy

We stand behind our products with a hassle-free 30-day return policy. If you're not completely satisfied, we'll make it right.

  1. Contact our support team within 30 days of purchase
  2. Receive a prepaid return shipping label
  3. Ship the item back in original condition
  4. Receive full refund within 5-7 business days

Exchanges & Special Cases

Free Exchanges: Need a different size or color? We offer free exchanges within 30 days of purchase.

Final Sale Items: Custom orders and clearance items are final sale and cannot be returned or exchanged.

Questions? Contact our support team for assistance with warranty claims or returns.

Customer Reviews & Ratings

We value your feedback and believe authentic customer reviews help build trust and improve our products. All reviews are verified and moderated to ensure quality and authenticity.

Share Your Experience

Your feedback helps other customers make informed decisions and helps us continue to improve our products and services.

  • Rate your overall satisfaction with the product
  • Share details about quality, durability, and performance
  • Describe how the product meets your needs
  • Provide helpful tips for other customers

Verified Reviews Only: We only display reviews from verified purchasers to ensure authenticity and reliability.

Complete Your Setup

Discover complementary products that work perfectly with your purchase. Enhance your experience with our curated selection of compatible items.

Your Recently Viewed

Quickly access products you've been interested in. Pick up where you left off and find exactly what you're looking for.

Common Questions & Answers

Find answers to frequently asked questions about warranties, returns, shipping, and product care. Can't find what you're looking for? Contact our support team for personalized assistance.

The 25mm standoff reduces the potential for decay at the post end|Suits 90mm to 100mm square posts|Can be cast-in-place or retrofitted with adhesive or mechanical anchors|All pins and fasteners needed for installation are included|Manufactured in heavier gauge steel for a stronger connection, finished with ZMAX® Galvanised|The CPT Concealed Post Base provides a clean, concealed look while providing a 25mm standoff height above concrete to help reduce the potential for decay to timber, at the post end. Available in 90mm (Black or Stainless Steel), 115mm, 140mm, and 200m sizes, the CPT forms part of Simpson Strong-Tie concealed structural connector range, which combines structural strength with invisibility. Manufactured in heavier gauge carbon steel for a stronger connection, base 2.7mm, plate 3.5mm, finished with ZMAX® Galvanised. The post support blade can be used as a template for location to drill dowel holes. Black powder coated base for a modern appearance. Tested and load-rated engineering data available. Suitable for Glulam and solid sawn timber. It can be installed with either mechanical or chemical anchors (dependent on engineering specifications). The 90 mm size is also available in 316 Stainless Steel for for more corrosive environments such as coastal areas. All pins and fasteners needed for installation are included.When Installing, use all specified fasteners. Post bases do not provide adequate resistance to prevent members from rotating about the base and therefore are not recommended for non‑braced or non‑top‑supported installations. Anchorage Options, The holes in the CPT tabs are sized for 12mm diameter anchors, for cast‑in‑place anchors, there should be 22mm (±3mm) of anchor above the top surface of the concrete.

Return Policy

We offer a hassle-free 30-day return policy on all products. If you're not completely satisfied, we'll make it right.

Return Eligibility

  • Items must be returned within 30 days of purchase
  • Products must be in original condition with all packaging and accessories
  • Proof of purchase (order number or receipt) is required

Return Process

  1. Contact our support team to initiate a return
  2. Receive a prepaid return shipping label
  3. Ship the item back to us
  4. Receive a full refund within 5-7 business days of receipt

Exchanges

Need a different size or color? We offer free exchanges within 30 days. Simply contact us with your order details.

Non-Returnable Items

Custom orders and clearance items are final sale and cannot be returned.

Outdoor Use Guidelines

Many of our products are suitable for outdoor use. Check the product specifications for weather resistance ratings.

Weather Resistance Ratings

  • IP54 Rating: Dust and splash resistant - suitable for covered outdoor areas
  • IP65 Rating: Dust and water jet resistant - suitable for most outdoor conditions
  • IP67 Rating: Dust and temporary immersion resistant - suitable for wet environments

Outdoor Care & Maintenance

  • Clean regularly with mild soap and water
  • Dry thoroughly after exposure to moisture
  • Store indoors during extreme weather conditions
  • Apply protective coating annually for extended outdoor use
  • Avoid prolonged exposure to direct sunlight

Temperature Range

Most products operate safely between -10°C and 50°C. Check your product manual for specific temperature specifications.

Warranty for Outdoor Use

Outdoor use is covered under our standard warranty, provided proper care and maintenance guidelines are followed.