Simpson MIU3.56/14 MIU Galvanized Face-Mount I-Joist Hanger for 3-1/2 in. x 14 in. Engineered Wood is built by Simpson Strong-Tie for commercial and high-load I-joist applications where a strong, code-compliant connection is essential. This face-mount hanger cradles the joist from below to deliver reliable load transfer without requiring web stiffeners, and its positive-angle nailing design speeds up installation while protecting the structural integrity of engineered wood flanges.

Key Features

• Positive-angle nailing (PAN) - allows nails to be driven at a more favorable angle, minimizing splitting of the I-joist flanges and letting crews work faster without sacrificing connection quality
• No web stiffeners required - simplifies installation on commercial and high-load I-joist applications, reducing material costs and labor time on the job site
• 16-gauge steel construction - provides the thickness and rigidity needed for demanding structural connections in heavy-load framing scenarios
• G90 zinc galvanized finish - adds a durable corrosion-resistant coating that helps extend the service life of the hanger in exposed or moisture-prone framing environments
• Cannot be modified - ensures the hanger performs exactly as engineered and rated, protecting structural integrity and code compliance on every installation

Why This Product

• Engineered for high-load I-joist work - the MIU series is specifically designed for commercial and high-load applications, making it a purpose-built solution rather than a general-purpose hanger used outside its intended range
• Faster installation without compromising strength - positive-angle nailing lets installers drive fasteners from a better angle, cutting nailing time while minimizing the flange splitting that can weaken an engineered wood joist
• No web stiffeners needed - eliminates a common extra step in I-joist hanger installations, keeping the connection detail cleaner and reducing the total number of components required at each bearing point
• Corrosion-resistant finish for lasting performance - the G90 galvanized coating gives this hanger durability in framing conditions where moisture exposure is a concern, helping protect the connection over the life of the structure

Specifications

• MPN: MIU3.56/14
• Member Size: 3-1/2 in. x 14 in.
• Width: 3-9/16 in.
• Height: 13-5/16 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 applications is the Simpson MIU3.56/14 designed for?

The MIU series hangers are designed for commercial and high-load I-joist applications. They provide strong support underneath the joist without requiring web stiffeners, making them well suited for demanding structural connections.

What fasteners should be used to install the MIU3.56/14?

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. Using all specified fasteners is essential for achieving the rated load capacity.

What is positive-angle nailing (PAN) and why does it matter?

Positive-angle nailing (PAN) is a design feature of the MIU series that allows nails to be driven at a more favorable angle. This minimizes splitting of the I-joist flanges and permits faster nailing, improving both structural integrity and installation efficiency.

Can the MIU3.56/14 hanger be modified in the field?

No. These hangers cannot be modified. Any alteration to the hanger would compromise its structural performance and code compliance. Always use the hanger as manufactured.

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