Metal structural connectors: The right hanger for the job.

Metal structural connectors (or hangers) are an omnipresent part of wood construction today. You’ll see them just about everywhere within commercial and residential buildings.  They might seem like secondary, one-size-fits-just-about-all installations but this couldn’t be further from the truth. They play an important role in a building’s safety, and require careful selection during planning and construction. 

Main functions

Their main functions are supporting load, for joists, wood-to-wood connections and wood to steel connections, but also to provide uplift support for cantilevered constructions like balconies or decks. They also help solidify a structure against stresses from high winds or storms. Finally, they play a part in extending building and wood structure life. This is why they are required by national building codes. Many people who use them, however, are not aware of the fact that the metal connector is specifically designed to its location and role in the structure 

Select carefully

Despite the variety of available connectors, a construction site sometimes gets only a couple of different types. This is more frequent on sites with non-engineered plans. Consequently, these connectors must be bent and nailed into place, which can compromise security. It is true that some connectors are designed to be field sloped but given that most structural failures are due to connection problems, the connector type should never be overlooked.

It’s a given that an engineered wood floor constructions such as the open-joist Triforce® require metal connectors (hangers). Our selection of connectors offers maximum strength and flexibility.

Our single framing connectors

  • The ITS top flange hangers with Strong-GripTM seat and Funnel FlangeTM installs faster than any other top flange hanger.
  • The IUS is a hybrid hanger that incorporates the advantages of face-mount and top-flange hangers.
  • SUR/L and HSUR/L models are skewed 45°and accommodate a 40° – 50° skew. The installation of these hangers does not require a beveled end cut.
  • THAI hangers have extra long straps. You can field-form them for height, adjustability and top flange hanger convenience. Positive angle nailing
    helps minimize splitting of the joist’s bottom flange.

Our double framing connectors

  • The B series offers enhanced load capacity for a wide range of applications.
  • The LBV is designed for multiple ply headers and weld-on applications.
  • The MIT’s Positive Angle Nailing helps minimize splitting of the joist’s bottom flange. Features uplift capacity and extended seat design (for slightly undercut joists).
  • The MIU series features 16 gauge steel and extra nailing for higher loads.
  • The HU series features uplift capacity and a large selection of sizes and load ranges. HU hangers have triangle holes that you can fill for increased loads. Web stiffeners required when used with joists.
  • LSSU models provide uplift capacity. You can field slope them and/ or skew them to 45°. They require Web stiffeners when used with joists; cut web stiffener to match angle on sloped conditions.

If you need assistance in choosing the proper connectors for your project, please contact us. We’ll be happy to help.

2 Responses

  1. Joe

    Do joist hangers need to be nailed or screwed? What does the building code mention? Screws or nails?
    Thank you
    Joe

    • Caroline Auger

      Hello Joe,
      Most of the time hangers have to be nailed. In all cases, it is important to follow the hanger manufacturer’s instructions to find out more about properties and limitations. For example, hanger capacity is generally based on the usage of a specific nail (type and length) also produced by the same manufacturer. Equivalent nail is usually listed in the manufacturer’s specifier guide. The most popular brands, including Simpson Strong-Tie and MiTek UPS, are the most commonly used hangers for the assembly of floor systems with TRIFORCE® open joist.

Leave a comment