Simpson Strong-Tie CPT88Z CPTZ™ ZMAX® Galvanized Concealed Post Base for 8x8
Hangers

Simpson Strong-Tie CPT88Z CPTZ™ ZMAX® Galvanized Concealed Post Base for 8x8

SKU: CPT88Z
📦 Available to Order — Add to Quote
Madison Township Lumber • Matawan, NJ
(732) 566-5555
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Product Description

The CPTZ post base incorporates a knife plate with a standoff base. It achieves a clean, concealed look while providing a 1 in. standoff height above concrete. The CPTZ is installed with 1/2 in. diameter galvanized pins (supplied).

Available Sizes & Options

SKUProductStatus
CPT88ZSimpson Strong-Tie CPT88Z CPTZ™ ZMAX® Galvanized Concealed Post Base for 8x8 CurrentAvailable
IUS1811188Simpson Strong-Tie 1 3/4 x 11-7/8 I Joist HangerAvailable
HUS18110Simpson Strong-Tie 1 3/4 x 9 1/2 Sloped Face Mount HangerAvailable
SUR18111Simpson Strong-Tie 1-3/4 x 11-7/8 Skew 45 R I-beam/lvlAvailable
IUS18195Simpson Strong-Tie 1-3/4 x 9-1/2 Side Mount SingAvailable
1212HLSimpson Strong-Tie 1212HL HL 12 in. x 12 in. 7-Gauge Galvanized Heavy L StrapAvailable
1212HLHDGSimpson Strong-Tie 1212HLHDG HL 12 in. x 12 in. 7-Gauge Hot-Dip Galvanized Heavy L StrapAvailable
1212HLPCSimpson Strong-Tie 1212HLPC HLPC 12 in. x 12 in. 7-Gauge Black Powder-Coated Ornamental L StrapAvailable
1212HTSimpson Strong-Tie 1212HT HT 12 in. x 12 in. 7-Gauge Galvanized Heavy T StrapAvailable
1212HTHDGSimpson Strong-Tie 1212HTHDG HT 12 in. x 12 in. 7-Gauge Hot-Dip Galvanized Heavy T StrapAvailable
1212HTPCSimpson Strong-Tie 1212HTPC HTPC 12 in. x 12 in. 7-Gauge Black Powder-Coated Ornamental T StrapAvailable
1212LSimpson Strong-Tie 1212L 12 in. x 12 in. 14-Gauge Galvanized L StrapAvailable
1212L-RSimpson Strong-Tie 1212L-R 12 in. x 12 in. 14-Gauge Galvanized L StrapAvailable
1212TSimpson Strong-Tie 1212T 12 in. x 12 in. 14-Gauge Galvanized T StrapAvailable
1212T-RSimpson Strong-Tie 1212T-R 12 in. x 12 in. 14-Gauge Galvanized T StrapAvailable
128TSimpson Strong-Tie 128T 12 in. x 8 in. 14-Gauge Galvanized T StrapAvailable
128T-RSimpson Strong-Tie 128T-R 12 in. x 8 in. 14-Gauge Galvanized T StrapAvailable
1616HTSimpson Strong-Tie 1616HT HT 16 in. x 16 in. 7-Gauge Galvanized Heavy T StrapAvailable
1616HTHDGSimpson Strong-Tie 1616HTHDG HT 16 in. x 16 in. 7-Gauge Hot-Dip Galvanized Heavy T StrapAvailable
1616HTPCSimpson Strong-Tie 1616HTPC HTPC 16 in. x 16 in. 7-Gauge Black Powder-Coated Ornamental T StrapAvailable
1616HTQSimpson Strong-Tie 1616HTQ HTQ 16 in. x 16 in. 7-Gauge Hot-Dip Galvanized Heavy T StrapAvailable

Product Details

Material

  • See table below

Finish

Knife plate, washers and standoff base are ZMAX®-galvanized steel. The standoff base has an additional textured, flat black powder-coat finish for aesthetic purposes. The 1/2"-diameter drift dowels are mechanically galvanized in accordance with ASTM B695, Class 55. If substituting 1/2"-diameter bolts, a hot-dip galvanized finish is recommended. Some available in stainless steel (see table).

Installation

  • Installation Guide
  • Use all specified fasteners; see General Notes.
  • Use knife blade portion of CPTZ as a template to mark dowel/bolt locations on post.
  • Drill 1/2"-diameter holes perpendicular to post at marked locations.
  • Cut a 3/16"-wide slot in the end of the post. Cut slot on face adjacent to the one with the holes. If using a circular saw, cut the slot roughly 6 1/2" up the post. Test that the knife blade slides freely in the slot.
  • Install the knife blade portion of the connector on the anchor bolts and then place the supplied washers over top of the connector’s tabs and on the anchor bolt. Use nuts to attach the knife blade and washers to the anchors.
  • The Designer must specify anchor bolt type, length and embedment.
  • Slide the standoff base on to the knife blade assembly.
  • Stand the post on the knife blade and drive in the dowels supplied with the connector.
  • Post bases do not provide adequate resistance to prevent members from rotating about the base and therefore are not recommended for non-top-supported installations (such as fences or unbraced carports).

Related Links

Catalog Pages

Patent Information

  • US Patent 8,484,917

Buy Simpson Strong-Tie CPT88Z CPTZ™ ZMAX® Galvanized Concealed Post Base for 8x8 in Central New Jersey

Madison Township Lumber & Supply has been serving Matawan, East Brunswick, Sayreville, and all of Middlesex County since 1962.

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Simpson Strong-Tie CPT88Z CPTZ™ ZMAX® Galvanized Concealed…