The Simpson MIU1.81/18 MIU Galvanized Face-Mount Joist Hanger is built by Simpson Strong-Tie for commercial and high-load I-joist applications, providing a strong, reliable connection beneath engineered wood members measuring 1-3/4 in. x 18 - 20 in. Formed from 16-gauge steel with a Zinc Galvanized, G90 finish, this face-mount hanger supports the joist from below without requiring web stiffeners, streamlining installation on demanding structural projects.

Key Features

• Positive-angle nailing - minimizes splitting of the flanges while allowing nailing from a more accessible angle, saving time on the job without sacrificing connection integrity
• No web stiffeners required - the hanger is engineered to handle high-load I-joist applications independently, reducing material needs and simplifying the installation process
• 16-gauge steel construction - delivers the structural rigidity needed for commercial-grade applications, ensuring the hanger holds up under demanding load conditions
• Zinc Galvanized, G90 coating - provides extra corrosion resistance, helping the hanger maintain its structural performance in environments where moisture exposure is a concern
• Cannot be modified - precision-manufactured to exact dimensions for 1-3/4 in. x 18 - 20 in. engineered wood members, ensuring consistent, code-compliant performance every time

Why This Product

• Engineered for high-load commercial use - the MIU series is specifically designed for commercial and high-load I-joist applications, making it a purpose-built choice for projects where standard hangers fall short
• Faster, safer nailing geometry - the positive-angle nailing design lets installers work efficiently and reduces the risk of damaging I-joist flanges during fastening, a common concern with engineered lumber
• Built-in corrosion protection - the G90 galvanized finish goes beyond basic coatings to extend the service life of the connection, particularly valuable in construction environments with elevated moisture exposure
• American-made precision - manufactured to strict dimensional tolerances that eliminate the need for field modifications, giving contractors a reliable, consistent fit for 1-3/4 in. x 18 - 20 in. I-joists right out of the box

Specifications

• MPN: MIU1.81/18
• Member Size: 1-3/4 in. x 18 - 20 in.
• Width: 1-13/16 in.
• Height: 17-5/16 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 in the face and 0.148 in. x 1-1/2 in. nails in the header (sold separately)
• Country of Origin: United States

Frequently Asked Questions

What type of applications is the Simpson MIU1.81/18 designed for?

The MIU1.81/18 is designed for commercial and high-load I-joist applications. It supports engineered wood members measuring 1-3/4 in. x 18 - 20 in. without requiring web stiffeners.

What fasteners should be used to install the MIU1.81/18?

Install with 0.162 in. x 3-1/2 in. nails in the face and 0.148 in. x 1-1/2 in. nails in the header. Always use all specified fasteners and verify that the header can accept the required fasteners.

What is the coating on the MIU1.81/18, and why does it matter?

The MIU1.81/18 features a Zinc Galvanized, G90 coating, which provides extra corrosion resistance, helping the hanger maintain its structural integrity in demanding environments.

Can the MIU1.81/18 hanger be modified for a different fit?

No. These hangers cannot be modified. They are precision-manufactured from 16-gauge steel to meet specific load and dimensional requirements for 1-3/4 in. x 18 - 20 in. engineered wood members.

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