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F-C-DTT1Z15

F-C-DTT1Z15

F-C-DTT1Z15

Product catalog summary
Overview: The DTT1Z Deck Tension Tie is a new product designed to provide a less invasive method for attaching decks to homes, aligning with the 2015 International Residential Code (IRC) standards. It offers an alternative to traditional methods by allowing four 750 lb. lateral connectors to be fastened to the house framing with a lag screw.
Specifications: The DTT1Z is designed to connect deck joists to top plates, studs, or headers, eliminating the need to access floor joists inside the house. It can be fastened to either the narrow or wide face of a single 2x with Strong-Drive® SD Connector screws. The product features a ZMAX® coating for corrosion protection and is available individually or as part of a retail pack.
Installation Instructions: The DTT1Z must be installed with a minimum of four ties evenly distributed along the deck, with one within two feet of each end of the ledger. It should be fastened into the center of the top plate, studs, or header, ensuring no obstructions like piping or wiring are present. The anchoring screw should penetrate at least 3 inches into the supporting structure.
Load and Fastening Details: The DTT1Z supports allowable tension loads of up to 910 lbs. depending on the fasteners used. It is important to note that installations with loads less than 750 lbs. do not meet the 2015 IRC requirements. The product can also be used as a holdown for light-duty shearwalls, meeting certain braced wall-panel applications.
Additional Features: The DTT1Z is versatile, allowing for various fastening options and can be used in wall-bracing applications. For more detailed installation guidance, users are directed to technical bulletins available on the Simpson Strong-Tie website.
Conclusion: The DTT1Z Deck Tension Tie is a robust solution for deck-to-house connections, ensuring compliance with modern building codes while offering flexibility in installation and application.
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Catalog excerpts

F-C-DTT1Z15-1

Get Your Deck Up to Code

 Open the catalog to page 1
F-C-DTT1Z15-2

Get Your Deck Up to Code New DTT1Z Deck Tension Tie Provides Alternate Approach to Attaching Decks to Homes The new DTT1Z deck tension tie provides a less invasive approach for attaching a new deck to a home or retrofitting an existing deck to current code standards. This tension tie addresses a 2015 International Residential Code provision (section R507.2.4) that now allows four 750 lb. lateral connectors to be fastened to framing in the house with a lag screw. This provision is an alternative to using two 1,500 lb. lateral connections from the deck to the floor joists within the house. The...

 Open the catalog to page 2
F-C-DTT1Z15-3

DTT1Z Installation Instructions for Deck Applications Equal Distances Layout: Determine the horizontal locations of the installations. A minimum of four DTT1Z deck tension ties must be evenly distributed along the deck with one DTT1Z within two feet of each end of the ledger. (Ledger screws and joist hangers not shown for clarity) Ledger Joist Optional Side-Mount Installation Determine the vertical locations of the installations. The DTT1Z tension tie must be fastened into the center of the top plate, studs or header (siding may need to be removed and exploratory holes may be needed). Ensure...

 Open the catalog to page 3
F-C-DTT1Z15-4

Wall Bracing and Shearwalls DTT1Z as a Holdown The 14-gauge DTT1Z has the versatility to be installed and load-rated as a holdown for light-duty shearwalls and may satisfiy the 800 lbs. holdown requirement for some braced wall-panel applications. For additional information about the DTT1Z in a wall-bracing application, refer to the technical bulletin T-WALLBRACE at www.strongtie.com. Post size by Designer SDWH TIMBER-HEX HDG screw with a Minimum 3" of Thread Penetration into Center of Solid Sawn 2x Rim Joist or Blocking Note: Joist hanger and connections to wall not shown for clarity DTT1Z installed...

 Open the catalog to page 4

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