The Simpson MIU1.81/11 MIU Galvanized Face-Mount Joist Hanger is a heavy-duty connector from Simpson Strong-Tie, purpose-built for commercial and high-load I-joist applications using 1-3/4 in. x 11-7/8 in. engineered wood members. Constructed from 16-gauge steel with a G90 zinc galvanized finish, this face-mount hanger delivers a strong, reliable connection underneath the joist without requiring web stiffeners - streamlining installation on demanding structural framing projects. Positive-angle nailing technology sets this hanger apart, reducing flange splitting while allowing installers to drive fasteners from a more efficient angle.

Key Features

• Positive-angle nailing (PAN) - minimizes splitting of the I-joist flanges during fastening, while allowing nails to be driven from a better angle for faster, more efficient installation
• No web stiffeners required - simplifies the installation process and reduces the need for additional materials, even in commercial and high-load framing applications
• 16-gauge steel construction - provides the structural strength and rigidity needed to handle demanding load requirements in engineered wood joist systems
• G90 zinc galvanized finish - delivers extra corrosion resistance, helping the hanger maintain long-term performance in moisture-prone environments
• Fixed, non-modifiable design - ensures the hanger retains its full rated load capacity and structural integrity exactly as manufactured, with no field alterations needed or permitted

Why This Product

• Built for high-load commercial framing - the MIU series is specifically engineered for commercial and high-load I-joist applications, making this hanger a reliable choice where standard hangers may fall short
• Faster installation without added steps - positive-angle nailing and the elimination of web stiffener requirements both work together to reduce labor time on the job site without compromising connection strength
• Corrosion-resistant for lasting durability - the G90 zinc galvanized coating provides extra protection against corrosion, adding confidence in applications where moisture exposure is a concern
• Precision-fit for engineered wood I-joists - machined specifically for a 1-3/4 in. x 11-7/8 in. member, this hanger is designed to work in exact alignment with engineered lumber dimensions common in modern structural framing

Specifications

• MPN: MIU1.81/11
• Member Size: 1-3/4 in. x 11-7/8 in.
• Width: 1-13/16 in.
• Height: 11-1/16 in.
• Seat Depth: 2-1/2 in.
• Gauge: 16
• Coating/Finish: Zinc Galvanized, G90
• Install With: 0.162 in. x 3-1/2 in. nails and 0.148 in. x 1-1/2 in. nails (sold separately)
• Country of Origin: United States

Frequently Asked Questions

What size joist is the MIU1.81/11 designed to support?

The MIU1.81/11 is designed for an actual joist size of 1-3/4 in. x 11-7/8 in., making it suitable for engineered wood I-joists of that dimension used in commercial and high-load applications.

What fasteners should be used to install the MIU1.81/11?

This hanger should be installed with 0.162 in. x 3-1/2 in. nails and 0.148 in. x 1-1/2 in. nails. Always use all specified fasteners to ensure a proper and code-compliant connection.

Does the MIU1.81/11 require web stiffeners?

No. The MIU series hangers are specifically designed for commercial and high-load I-joist applications without requiring web stiffeners, simplifying installation and reducing material requirements.

Can the MIU1.81/11 hanger be field-modified to fit different joist sizes?

No. These hangers cannot be modified. The MIU1.81/11 is manufactured precisely for a 1-3/4 in. x 11-7/8 in. member size and must be used as supplied to maintain its rated load capacity and structural integrity.

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