The Simpson MIU1.56/9 Face-Mount I-Joist Hanger 1-1/2 x 9-1/2 is a 16-gauge, zinc galvanized (G90) structural connector from Simpson built for commercial, high-load, and double I-joist framing applications. Engineered to deliver reliable performance without requiring web stiffeners in standard configurations, this face-mount hanger streamlines the installation process while maintaining the structural integrity demanded by demanding job sites.

Key Features

• Designed for commercial, high-load, and double I-joist applications without web stiffeners - eliminates the extra step of installing web stiffeners in standard use, saving labor time and reducing material costs on the job site.
• Positive-angle nailing (PAN) technology - permits nailing from a better angle, which minimizes splitting of the I-joist flanges and helps protect joist integrity throughout installation.
• Speed prongs for hands-free positioning - temporarily secure the connector to the header before nailing, allowing one-person alignment and significantly faster placement during framing.
• Optional triangle joist nail holes for additional uplift capacity - provides the flexibility to achieve higher uplift performance when project requirements demand it, with the addition of properly attached web stiffeners.
• 16-gauge steel with G90 zinc galvanized coating - delivers a balance of structural strength and corrosion resistance suited to the demands of commercial framing environments.

Why This Product

• Fewer installation steps in standard configurations - because web stiffeners are not required for typical use, framing crews can move faster without sacrificing structural performance on commercial and high-load I-joist projects.
• Built-in features that protect your materials - positive-angle nailing (PAN) actively reduces the risk of flange splitting during fastening, helping preserve the I-joist and avoid costly rework or material waste.
• Scalable uplift performance - the option to add triangle joist nail holes means the hanger can be configured to meet higher uplift demands when project conditions require it, giving contractors flexibility within a single product.
• Domestically produced with a protective finish - the G90 zinc galvanized coating supports longevity in the field, and the hanger is made in the United States to consistent quality standards backed by the Simpson name.

Specifications

• Model No.: MIU1.56/9
• Joist Size: 1-1/2 in. x 9-1/2 in.
• Gauge (Ga.): 16
• Width: 1-9/16 in.
• Height: 8-15/16 in.
• Seat Depth: 2-1/2 in.
• Coating/Material: Zinc Galvanized, G90
• Country of Origin: United States

Frequently Asked Questions

Do I need web stiffeners with the MIU1.56/9?

The MIU hanger is designed specifically for commercial, high-load, and double I-joist applications without requiring web stiffeners. However, models with optional triangle joist nail holes for additional uplift do require properly attached web stiffeners.

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

Positive-angle nailing (PAN) is a design feature that permits nailing from a better angle, which minimizes splitting of the I-joist flanges during installation. This saves time on the job site while helping to protect the integrity of the joist material.

How can I achieve the maximum uplift load with the MIU1.56/9?

To achieve a total uplift load of 975 lbs., add four additional 10dx1-1/2" joist nails beyond the standard specified fasteners. Always use all specified fasteners and verify that the header can accept the required fasteners specified in the load table.

What is the purpose of the speed prongs on the MIU1.56/9?

The speed prongs are designed to temporarily position and secure the connector to the header or framing member before nailing, allowing for hands-free alignment and significantly faster, easier installation on the job site.

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