The Simpson MIT11.88 Top-Flange Joist Hanger from Simpson is purpose-built to support 90 deg. connections of I-joists to headers, delivering maximum down loads while requiring a minimum number of fasteners. Designed to be installed before the joist is in place, this top-flange hanger features a Funnel Flange design that simplifies member placement and speeds up the installation process. Made from 16-gauge steel with a G90 zinc galvanized finish, it is a reliable and cost-effective solution for engineered wood framing applications where structural performance and efficiency are both priorities.

Key Features

• Positive-angle nailing (PAN) specifically designed for I-joists - minimizes splitting of the flanges while allowing nailing from a better angle, saving time on the job without sacrificing connection integrity.
• Nail hole material is not removed with positive-angle nailing - preserves the full structural integrity of the connection point, maintaining the strength of the I-joist flange.
• Funnel Flange design - guides members into position more easily before the joist is set, reducing placement effort and improving installation accuracy.
• Optional triangle nail holes for increased uplift capacity - gives builders flexibility to upgrade the connection's uplift resistance where required, provided properly-secured web stiffeners are added.
• Optional fastening with PAT for steel header applications - extends compatibility beyond wood framing, making this hanger useful across a broader range of structural header materials.
• 16-gauge steel construction with G90 zinc galvanized coating - provides added corrosion resistance, supporting long-term performance in demanding framing environments.
• Cost-effective alternative to welded hangers - delivers a dependable 90 deg. I-joist-to-header connection at a lower cost than fabricated welded options, without compromising load capacity.

Why This Product

• Engineered specifically for I-joist framing - the PAN design and Funnel Flange work together to protect I-joist flanges from splitting and make alignment easier, addressing the two most common challenges when hanging engineered lumber.
• Fewer fasteners, faster installation - the top-flange design delivers maximum down loads with a minimum number of fasteners, reducing hardware costs and cutting time on repetitive framing connections.
• Built-in flexibility for higher-demand applications - optional triangle nail holes allow increased uplift capacity and optional PAT fastening supports steel header applications, giving contractors a single hanger that adapts to varying project requirements.
• Durable G90 galvanized finish from a trusted connector brand - the zinc galvanized coating provides extra corrosion resistance, and the hanger is made in the United States, reflecting the quality standards Simpson is known for in structural connectors.

Specifications

• MPN: MIT11.88
• Member Size: 1-3/4 x 11-7/8 in.
• Width: 1-13/16 in.
• Height: 11-7/8 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

Frequently Asked Questions

What type of connection is the Simpson MIT11.88 designed to support?

The Simpson Strong-Tie MIT11.88 is designed to support 90 deg. connections of I-joists to headers, making it an integral component for engineered wood framing where maximum down loads are required with a minimum number of fasteners.

What nails are required to install the MIT11.88?

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.

What is positive-angle nailing (PAN), and why does it matter for I-joists?

Positive-angle nailing (PAN) is a design feature specifically created for I-joists that minimizes splitting of the flanges while permitting time-saving nailing from a better angle. Importantly, the nail hole material is not removed with positive-angle nailing, preserving the structural integrity of the connection.

Can the MIT11.88 be used to increase uplift capacity?

Yes. Optional triangle nail holes may be used for increased uplift capacity. However, optional uplift nailing requires the addition of properly-secured web stiffeners to ensure a safe and compliant installation.

Note: Product dimensions may differ from picture. Please see the item description above for specifications.