Product Description
The Simpson Adjustable I-Joist Truss Hanger is engineered specifically for I-joist and engineered wood applications, featuring extra-long straps that can be field-formed to deliver both height adjustability and top-flange hanger convenience. Built from 18-gauge steel with a G90 zinc galvanized finish, this hanger provides reliable structural support underneath the joist, creating a strong connection for a range of engineered wood members across varying depths.
Key Features
- Positive-angle nailing (PAN) - drives fasteners at an angle that helps eliminate splitting of the I-joist's bottom flange, protecting the integrity of the engineered wood member during and after installation
- Extra-long straps that can be field-formed - allows on-site height adjustment without special tooling, giving installers flexibility to dial in the correct position for top-flange hanger applications
- Accommodates a range of joist widths and depths - fits engineered I-joists with widths from 2-1/4 in. to 2-5/16 in. and depths from 9-1/4 in. to 14 in., covering a broad variety of common framing scenarios
- 18-gauge steel construction - provides a durable, load-bearing hanger body capable of handling the demands of structural framing connections
- G90 zinc galvanized finish - offers extra corrosion resistance to help maintain structural performance in moisture-prone environments
Why This Product
- Field-adjustable design saves time on the job - the extra-long, field-formable straps let contractors fine-tune hanger height at the installation point rather than sourcing a different hanger, reducing delays and material waste on engineered wood framing projects
- PAN geometry actively protects expensive engineered lumber - positive-angle nailing is specifically designed to prevent bottom-flange splitting on I-joists, helping avoid costly damage to engineered wood members during fastening
- Corrosion-resistant finish extends service life - the G90 galvanized coating goes beyond basic protection, making this hanger a reliable choice for applications where moisture exposure is a concern
- Manufactured by Simpson, a recognized name in structural connectors - the Simpson line of hangers is developed to handle a wide range of framing applications, and the adjustable I-joist truss hanger reflects that focus on application-specific engineering for top-flange and height-sensitive installations
Specifications
- MPN: THAI3522
- Brand: Simpson Strong-Tie
- Member Size (Joist Width): 2-1/4 in. to 2-5/16 in.
- Joist Depth: 9-1/4 in. to 14 in.
- Seat Width: 2-5/16 in.
- Gauge: 18-gauge steel
- Coating: Zinc Galvanized, G90
- Finish: Zinc Galvanized, G90
- Install With: (6-20) 0.148 in. x 3 in. nails in the header and (2) 0.148 in. x 1-1/2 in. nails in the joist
- Country of Origin: United States
Approved Applications
- I-joist and engineered wood truss connections
- Top-flange hanger installations requiring field-adjustable height
- Applications requiring joist depths from 9-1/4 in. to 14 in.
- Connections where positive-angle nailing is required to protect the I-joist's bottom flange
Options
- Contact us for Configurable Options and Special orders
Note: Product dimensions may differ from picture.
Frequently Asked Questions
What joist widths and depths is the THAI3522 compatible with?
The THAI3522 is designed to accommodate joist widths from 2-1/4 in. to 2-5/16 in. and joist depths ranging from 9-1/4 in. to 14 in., making it suitable for a variety of engineered wood I-joist sizes.
What fasteners are required to install the THAI3522?
Installation requires (6-20) 0.148 in. x 3 in. nails driven into the header and (2) 0.148 in. x 1-1/2 in. nails driven into the joist. Use all specified fasteners and verify that the header can accept the fasteners listed. When a total of 20 face nails are used in the THAI straps, maximum load-carrying capacity is achieved.
What does positive-angle nailing (PAN) do for I-joist installations?
Positive-angle nailing (PAN) is a feature of the THAI3522 that helps eliminate splitting of the I-joist's bottom flange during installation, protecting the structural integrity of the engineered wood member.
Are web stiffeners required when using the THAI3522?
Yes, web stiffeners are required for all I-joists used with the THAI3522 hanger. Additionally, for top nailing installations, the strap must be field-formed over the top of the header by a minimum of 2-1/2 in. to meet installation requirements.
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