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Simpson Strong ITS I-Joist Top-Flange Hanger with Snap-In Bottom Flange

Simpson Strong-Tie Company

The innovative ITS is designed to support 90° connections of I-joists to headers. This top-flange hanger features the Strong-Grip seat and Funnel Flange design allowing standard joist installation without the use of joist nails, resulting in the lowest installed cost.

Key Features

  • Cost-effective hanger that installs quickly with a small number of nails
  • Features additional triangle holes for additional uplift
  • Features optional fastening with PAT for steel applications/header


  • 18 gauge


  • Galvanized


  • Use all specified fasteners. Verify that the header can take the required fasteners specified in the table.
  • See product-specific installation drawings.
  • No joist nailing required for standard I-joist installation without web stiffeners. When hanger is used to support I-joists with web stiffeners or rectangular SCL member (2) 0.148" x 1 1/2" nails must be installed into optional triangle joist nail holes for standard installation values.
  • Optional triangle nail holes may be used for additional load. See allowable load tables.
  • For sloped joists up to 1/4:12, there’s no reduction; from 1/4:12 up to 1/2:12, tests show a 10% reduction in ultimate hanger strength. Local crushing of the bottom flange or excessive deflection may be limiting; check with joist manufacturer for specific limitations on bearing of this type.

Allowable Loads

  • Locations are provided for optional nails if additional uplift is needed. Optional uplift nailing requires the addition of properly-secured web stiffeners. See the load tables for minimum required fasteners and allowable uplift loads.
  • For attaching to multi-ply headers, refer to technical bulletin Top-Flange Hanger Reductions for Multiple-Ply Headers (T-C-MPLYHEADR).

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