Product Description
Simpson CPT66Z CPTZ ZMAX Galvanized Concealed Post Base for 6x6 by Simpson Strong-Tie is a knife plate concealed post base engineered for 6x6 nominal posts. It incorporates a knife plate with a standoff base to achieve a clean, concealed look while providing a 1 in. standoff height above concrete. The ZMAX galvanized finish delivers superior corrosion resistance, making this post base well suited for exterior and treated-wood applications.
Key Features
- The 1 in. standoff height is code-required when supporting permanent structures that are exposed to weather or water splash, or in basements
- The standoff reduces the potential for decay at post or column ends
- The anchorage for the CPTZ can be either cast-in-place or retrofit with adhesive or mechanical anchors
- Nominal post size: 6x6
- Base: 12 ga.; knife plate: 10 ga.
- ZMAX galvanization offers extra corrosion resistance for exterior and treated-wood applications
- Installed with 1/2 in. diameter galvanized pins (supplied)
Specifications
- MPN: CPT66Z
- Brand: Simpson Strong-Tie
- Nominal/Rough Post Size: 6x6
- Gauge: Base 12 ga.; knife plate 10 ga.
- Coating: ZMAX
- Finish: ZMAX
- Installation Hardware: Install with 1/2 in. anchor bolts and supplied dowels
- Width: 5-3/8 in.
- Length: 5-3/8 in.
- Country of Origin: United States
What's Included
Each pack contains CPT66Z concealed post base, 1/2 in. diameter galvanized pins (supplied).
Downloads and Resources
Frequently Asked Questions
- Why is the 1 in. standoff height important?
- The 1 in. standoff height is code-required when supporting permanent structures that are exposed to weather or water splash, or in basements. It also reduces the potential for decay at post or column ends by keeping the post end elevated above the concrete surface.
- What anchorage methods are compatible with the CPT66Z?
- The anchorage for the CPTZ can be either cast-in-place or retrofit with adhesive or mechanical anchors, providing flexibility for both new construction and existing concrete installations.
- Why is ZMAX galvanization used on this post base?
- ZMAX galvanization offers extra corrosion resistance, making the CPT66Z suitable for exterior applications and use with treated wood, where standard galvanized finishes may be insufficient over time.
- What fasteners are required to install the CPT66Z?
- The CPT66Z is installed with 1/2 in. anchor bolts and the supplied 1/2 in. diameter galvanized drift dowels, which are included with the post base.
Related Products
Note: Product dimensions and/or Screw or Bolt holes may differ from picture.
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