What Is a Joist Hanger: A Comprehensive Guide

May 21, 2024

Joist hangers are vital structural hardware pieces used primarily in deck construction. They merge structural strength with decorative design for outdoor spaces and are growing in popularity for their utility and aesthetic in under-deck areas and pergolas.

Definition

Joist hangers secure and support floor joists, connecting them to beams. Floor joists are generally 2x6, 2x8, or 2x10 inches. Most modern joist hangers are adjustable two-piece brackets, although older versions are usually one-piece.

"Joist hanger problem" by sparr0 is licensed under CC BY-SA 2.0. To view a copy of this license, visit https://creativecommons.org/licenses/by-sa/2.0/.

Usage and Installation

Enhance DIY Projects

Joist hangers enhance DIY pergola and patio covers, simplifying the construction of backyard shade structures.

Installation Process

The installation involves securing a joist hanger to a beam and fastening through pre-drilled openings. Joist hangers maintain a connection between the joist lumber and other structural components to prevent twisting or shrinking as they dry.

"Joist hanger gap" by sparr0 is licensed under CC BY-SA 2.0. To view a copy of this license, visit https://creativecommons.org/licenses/by-sa/2.0/.

Functionality and Load Capacity

Joist hangers ensure the deck floor or roof structure remains squared and stable. They serve both structural and decorative purposes. Rigorous testing ensures compliance with building codes (IBC and IRC), guaranteeing minimum load-bearing and shear strength:

  • 2x6 joist supports 400 lbs
  • 2x8 joist supports 500 lbs
  • 2x10 joist supports 600 lbs
  • 2x12 joist supports 700 lbs

Popular Brands

Simpson Strong-Tie and Wild Hog Railing are prominent brands known for quality structural hardware. These brands are recommended for DIY backyard builds for their durable, galvanized steel construction.

Additional Resources

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