Product Description
The Simpson MIT320 Top-Flange Joist Hanger for 2-1/2 in. x 20 in. Engineered Wood from Simpson is built to support 90 deg. connections of I-joists to headers, delivering maximum down load capacity while requiring a minimum number of fasteners. Designed for installation before the joist is in place, this top-flange hanger features a Funnel Flange design that guides the I-joist into position with less effort, making it a practical and cost-effective connector for engineered wood framing.
Key Features
- Positive-angle nailing (PAN) - minimizes splitting of the I-joist flanges and allows nailing from a better angle, so installation goes faster without compromising structural integrity
- Nail hole material is retained with PAN - the flange stays intact during fastening, maintaining the strength of the connection and reducing the risk of damage to the engineered wood
- Optional triangle nail holes for increased uplift capacity - gives builders flexibility to meet higher-demand load requirements when paired with properly-secured web stiffeners
- Funnel Flange design - guides the I-joist into place more easily during installation, saving time on the job site especially when working at height or in tight bays
- Optional fastening with PAT for steel headers - expands compatibility beyond wood framing, making this hanger useful across a wider range of structural applications
- 16-gauge steel construction - provides the structural rigidity needed for heavy engineered wood members without excessive bulk
- G90 zinc galvanized finish - delivers extra corrosion resistance, helping the hanger hold up in environments where moisture exposure is a concern
Why This Product
- Engineered specifically for I-joists - the positive-angle nailing system is purpose-built to protect I-joist flanges from splitting, a common issue with standard hangers not designed for engineered lumber
- Faster, easier installation - the Funnel Flange guides members into place before fastening, and PAN allows nailing from a more accessible angle, both of which reduce labor time on the job site
- Scalable load performance - optional triangle nail holes enable increased uplift capacity when project demands require it, giving contractors a single hanger solution that can adapt to varying structural requirements
- Cost-effective alternative to welded hangers - provides a reliable 90 deg. I-joist-to-header connection at a lower cost than welded options, without sacrificing the load capacity needed for engineered wood applications
Specifications
- MPN: MIT320
- Member Size: 2-1/2 x 20
- Width: 2-9/16 in.
- Height: 20 in.
- Seat Depth: 2-1/2 in.
- Top Flange: 2-5/16 in.
- Gauge: 16
- Coating/Finish: Zinc Galvanized, G90
- Country of Origin: United States
- Install With: Install with 0.162 in. x 3-1/2 in. nails in the header and 0.148 in. x 1-1/2 in. nails in the joist (sold separately)
Options
- Contact us for Configurable Options and Special orders
Note: Product dimensions may differ from picture. Please see the item description above for specifications.
Frequently Asked Questions
What is the purpose of the Funnel Flange design on the MIT320?
The Funnel Flange design on the MIT320 allows for easier placement of members during installation. Because this top-flange hanger is installed before the joist is in place, the Funnel Flange helps guide the I-joist into position more efficiently, saving time on the job site.
What type of nailing system does the MIT320 use, and why does it matter for I-joists?
The MIT320 features positive-angle nailing (PAN), which is specifically created for I-joists to minimize splitting of the flanges. With PAN, the nail hole material is not removed, which helps maintain the structural integrity of the flange while also allowing nailing from a better angle for time savings during installation.
Can the MIT320 be used for applications requiring increased uplift capacity?
Yes. The MIT320 includes optional triangle nail holes that may be used for increased uplift capacity. However, optional uplift nailing requires the addition of properly-secured web stiffeners to ensure structural performance.
What corrosion protection does the MIT320 provide, and what fasteners are required for installation?
The MIT320 is coated with a G90 zinc galvanized finish for extra corrosion resistance. For installation, use 0.162 in. x 3-1/2 in. nails in the header and 0.148 in. x 1-1/2 in. nails in the joist.
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