The Simpson MIU5.12/18 Face-Mount I-Joist Hanger is an engineered structural connector purpose-built for commercial, high-load, and double I-joist applications. Designed to perform without requiring web stiffeners in standard configurations, this 5-inch by 18-inch face-mount hanger delivers reliable load transfer and fast jobsite installation. Manufactured with positive-angle nailing (PAN) technology and speed prongs for hands-free positioning, the MIU5.12/18 is a trusted solution for demanding framing applications where performance and efficiency are equally critical.

Key Features

• Positive-Angle Nailing (PAN): Minimizes splitting of the I-joist flanges while allowing nailing from a more ergonomic and time-saving angle, improving both safety and installation speed.
• Speed Prongs: Temporarily position and secure the connector to the header without fasteners, freeing both hands for faster, easier installation.
• No Web Stiffeners Required: Engineered for commercial and high-load applications without the added labor of installing web stiffeners in standard use.
• Double I-Joist Compatible: Specifically designed to accommodate double I-joist assemblies, making it suitable for heavy-load structural scenarios.
• Optional Triangle Joist Nail Holes: Additional nail hole pattern available for increased uplift resistance when project requirements demand it.
• G90 Zinc Galvanized Coating: Provides corrosion resistance suited for protected interior framing environments.
• 16-Gauge Steel Construction: Heavy-duty gauge for structural integrity in demanding commercial framing conditions.
• Made in the United States: Domestically manufactured to consistent quality standards.

Specifications

• Model Number: MIU5.12/18
• Manufacturer Part Number (MPN): MIU5.12/18
• Joist Size: 5 in. x 18 in.
• Gauge: 16
• W (Width): 5-1/8 in.
• H (Height): 17-5/16 in.
• B (Bearing): 2-1/2 in.
• Coating / Material: Zinc Galvanized, G90
• Hanger Type: Face-Mount
• Country of Origin: United States

Approved Applications

• Commercial framing requiring high-load I-joist connections
• Double I-joist assemblies in heavy structural applications
• Face-mount joist-to-header connections where positive-angle nailing is preferred
• Applications requiring optional enhanced uplift resistance via triangle joist nail holes
• Structural framing scenarios where web stiffener-free installation is desired in standard configurations

Installation Notes

• Use all specified fasteners as required by the load table. Verify that the header can accept all required fasteners specified in the installation table.
• Models include optional triangle joist nail holes for additional uplift capacity. Properly attached web stiffeners are required when utilizing this uplift configuration.
• For the MIU model: add four additional 10d x 1-1/2 in. joist nails for a total uplift load of 975 lbs.

Frequently Asked Questions

Do I need web stiffeners when using the MIU5.12/18?

No. The MIU5.12/18 is engineered specifically for commercial and high-load applications without requiring web stiffeners in standard configurations, reducing labor and simplifying installation.

Is this hanger compatible with double I-joist assemblies?

Yes. The MIU5.12/18 is specifically designed to accommodate double I-joist assemblies, making it well suited for heavy-load structural scenarios where added carrying capacity is needed.

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

Positive-angle nailing (PAN) is a feature that allows nails to be driven at an angle that minimizes splitting of the I-joist flanges while enabling a more ergonomic nailing position, improving both installation speed and safety on the jobsite.

What type of corrosion protection does the MIU5.12/18 have?

The MIU5.12/18 features a G90 zinc galvanized coating, which provides corrosion resistance suited for protected interior framing environments.