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CJTZ Concealed Joist Tie

CJTZ

On This Page

The CJTZ is a concealed connector. It can be installed three ways: with no routing of header/post or beam, a routed header/post or a routed beam. It is part of a concealed connector system that includes the CPTZ and CBTZ.

Material

  • 12 gauge

Finish

  • ZMAX® coating

Installation

  • Use all specified fasteners; see General Notes.
  • The CJTZ is supplied with all dowels and screws required. Screws require a hex-head driver.
  • Router end of beam for screw heads for flush installation.
  • The carried member may be sloped up or down to 45° with full table loads.

Warning

  • This connector requires special attention to ensure correct installation. The beam must be installed perpendicular to the support member. The connection's components may be damaged if the beam is rotated from its opposite end during or after installation. Damaged components may not be noticeable and may reduce the connector's load carrying capacity.

Options

  • See technical bulletin CJTZ/HCJTZ — Concealed Joist Tie Kits (T-C-CJTZ).

Ordering Information

  • The CJTZ only is available with two dowel lengths.
  • To order: specify short (e.g. CJT3ZS) or long dowels (e.g. CJT3ZL).
  • Short dowel (1/2" x 2 3/4") for use with 3 1/8" glulam beam, 4x sawn lumber or 3 1/2"-wide PSL. Long dowel (1/2" x 4 3/4") for use with 5 1/8" glulam beam, 6x sawn lumber or greater widths.

Related Literature

Wood Construction Connectors 2019-2020
C-C-2019
A catalog including new product information as well as any applicable specification and installation instructions for wood-to-wood and wood-to-concrete structural connectors.
Catalog
Conectores para la construcción con madera 2019–2020
C-C-2019SP
El catálogo incluye información sobre nuevos productos, así como especificaciones e instrucciones de instalación aplicables para conectores estructurales de madera a madera y de madera a concreto.
Catalog
CJTZ/HCJTZ – Concealed Joist Tie Kits
T-C-CJTZ19
A technical bulletin featuring product information and installation instructions for CJTZ and HCJTZ kits
Technical Bulletin
Allowable Loads for CBTZ with CJT
L-C-CBTZALT19
This letter summarizes allowable loads for the Concealed Beam Tie (CBTZ) connectors used in conjunction with the Concealed Joist Tie (CJTZ) connectors.
Engineering Letter

Load Tables

    These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.

CJTZ/HCJTZ Light and Heavy-Duty Concealed Joist Ties Load Table
  1. Center dowel in beam. Short dowel (1/2" x 2 3/4") is for use with 3 1/8" glulam beam, 4x sawn lumber, or 3 1/2" wide PSL. Long dowel (1/2" x 4 3/4") is for use with 5 1/8" glulam beam, 6x sawn lumber, or greater widths.

Code Reports

Part IAPMO UES ER ICC-ES ESR City of Los Angeles State of Florida
CJT3Z ER-102 ER-280 RR25962 FL10865
CJT4Z ER-102 ER-280 RR25962 FL10865
CJT5Z ER-102 ER-280 RR25962 FL10865
CJT6Z ER-102 ER-280 RR25962 FL10865

Drawings

Part Orthographic Perspective
CJT3Z
CJT3Z Bottom View
DWG DXF
CJT3Z Front View
DWG DXF
CJT3Z Front View
DWG DXF
CJT3Z Left View
DWG DXF
CJT3Z Left View
DWG DXF
CJT3Z Right View
DWG DXF
CJT3Z Top View
DWG DXF
None
CJT4Z
CJT4Z Bottom View
DWG DXF
CJT4Z Front View
DWG DXF
CJT4Z Front View
DWG DXF
CJT4Z Left View
DWG DXF
CJT4Z Left View
DWG DXF
CJT4Z Right View
DWG DXF
CJT4Z Top View
DWG DXF
None
CJT5Z
CJT5Z Bottom View
DWG DXF
CJT5Z Front View
DWG DXF
CJT5Z Front View
DWG DXF
CJT5Z Left View
DWG DXF
CJT5Z Left View
DWG DXF
CJT5Z Right View
DWG DXF
CJT5Z Top View
DWG DXF
None
CJT6Z
CJT6Z Bottom View
DWG DXF
CJT6Z Front View
DWG DXF
CJT6Z Front View
DWG DXF
CJT6Z Left View
DWG DXF
CJT6Z Left View
DWG DXF
CJT6Z Right View
DWG DXF
CJT6Z Top View
DWG DXF
None

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