The Simpson MIT311.88 MIT Galvanized Top-Flange Joist Hanger is built to support 90 deg. connections of I-joists to headers in engineered wood framing, delivering maximum down load capacity while keeping fastener counts to a minimum. Designed by Simpson for installation before the joist is set in place, this top-flange hanger features a Funnel Flange design for easier member placement and positive-angle nailing (PAN) developed specifically for I-joists - making it a reliable, efficient choice for engineered lumber framing where precision and speed both matter.

Key Features

• Positive-angle nailing (PAN) with no hole material removed - minimizes flange splitting during installation and allows nailing from a more efficient angle, saving time on the job without compromising the integrity of the I-joist flange.
• Funnel Flange design - guides the joist into position more easily during installation, reducing placement effort and improving accuracy when setting engineered wood members before decking goes down.
• Optional triangle nail holes for increased uplift capacity - gives installers flexibility to address higher uplift demands when combined with properly-secured web stiffeners, adapting the hanger to more demanding structural requirements.
• Optional PAT fastening for steel header applications - extends compatibility beyond wood framing to steel header connections, broadening the range of projects where this single hanger can be used.
• 16-gauge steel construction with G90 zinc galvanized finish - provides the structural strength and corrosion resistance needed for engineered wood framing applications where long-term durability is essential.
• Cost-effective alternative to welded hangers - delivers reliable 90 deg. I-joist-to-header connections at a lower cost than custom or welded solutions, without sacrificing load performance.

Why This Product

• Engineered specifically for I-joist framing - the PAN design and Funnel Flange work together to protect engineered wood flanges during installation, addressing the specific vulnerabilities of I-joists that standard joist hangers are not designed to handle.
• Maximum load with fewer fasteners - the MIT311.88 is designed to achieve high down load capacity while requiring a minimum number of fasteners, reducing both material use and installation time on engineered wood framing projects.
• Built-in versatility for varying structural demands - optional triangle nail holes for uplift applications and optional PAT fastening for steel headers mean one hanger model can be adapted to a wider range of connection scenarios without sourcing a separate product.
• Pre-joist installation design streamlines the framing sequence - because this top-flange hanger is installed before the joist is set in place, it fits naturally into standard framing workflows and helps keep the job moving efficiently.

Specifications

• MPN: MIT311.88
• Member Size: 2-1/2 in. to 2-9/16 in. x 11-7/8 in.
• Width: 2-9/16 in.
• Height: 11-7/8 in.
• Seat Depth: 2-1/2 in.
• Top Flange: 2-5/16 in.
• Gauge: 16
• Coating: Zinc Galvanized, G90
• Finish: Zinc Galvanized, G90
• Installation Fasteners: 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)
• Country of Origin: United States

Approved Applications

• 90 deg. connections of I-joists to headers in engineered wood framing
• Applications requiring maximum down load capacity with a minimum number of fasteners
• Steel header applications using optional PAT fastening
• Installations requiring increased uplift capacity when used with optional triangle nail holes and properly-secured web stiffeners

Options

• Contact us for Configurable Options and Special orders

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