Product Features
Product Description
The Simpson MIU4.75/18 is a galvanized face-mount I-joist hanger engineered for commercial and high-load applications. Designed to support a 4-5/8 in. x 18 in. engineered wood I-joist, this hanger delivers a strong, reliable connection without requiring web stiffeners. Built from 16-gauge steel with a G90 zinc galvanized coating for enhanced corrosion resistance, the MIU4.75/18 features Simpson Strong-Tie's positive-angle nailing (PAN) technology, which minimizes flange splitting while allowing faster, more ergonomic nailing. Whether you're working on a demanding commercial build or a high-load residential framing project, this face-mount hanger is engineered to perform.
Key Features
- Positive-Angle Nailing (PAN): Minimizes splitting of the flanges while permitting time-saving nailing from a better angle
- No Web Stiffeners Required: Designed for commercial and high-load I-joist applications without the need for web stiffeners
- 16-Gauge Steel Construction: Heavy-duty steel gauge provides strength and durability for demanding load applications
- G90 Zinc Galvanized Finish: Provides extra corrosion resistance for long-lasting performance
- Face-Mount Design: Mounts directly to the face of the header for secure, straightforward installation
- Cannot Be Modified: Engineered to exact specifications - these hangers cannot be field-modified
- Made in the United States: Manufactured domestically to Simpson Strong-Tie quality standards
Specifications
- Manufacturer Part Number (MPN): MIU4.75/18
- Member / Joist Size: 4-5/8 in. x 18 in.
- Width: 4-3/4 in.
- Height: 17-1/2 in.
- Seat Depth: 2-1/2 in.
- Steel Gauge: 16-gauge
- Coating / Finish: Zinc Galvanized, G90
- Mount Type: Face-Mount
- 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
Approved Applications
- Commercial framing and high-load I-joist applications
- Engineered wood I-joist connections at 4-5/8 in. x 18 in. member size
- Face-mount hanger installations where web stiffeners are not practical or desired
- Applications requiring positive-angle nailing for faster, split-free installation
Installation
Install the Simpson MIU4.75/18 using all specified fasteners: 0.162 in. x 3-1/2 in. nails and 0.148 in. x 1-1/2 in. nails. Use all specified fasteners as required. Note that these hangers cannot be modified in the field.
Note: Product dimensions may differ from picture. Please refer to the specifications listed above for accurate dimensions.
Frequently Asked Questions
- What size I-joist is the MIU4.75/18 designed to support?
- The MIU4.75/18 is designed to support an engineered wood I-joist with an actual size of 4-5/8 in. x 18 in. It is a face-mount hanger, meaning it mounts directly to the face of the header to secure the joist.
- Does this hanger require web stiffeners during installation?
- No. The MIU series is specifically designed for commercial and high-load I-joist applications without requiring web stiffeners, which can simplify the installation process on demanding projects.
- What nails should be used to install the MIU4.75/18?
- The MIU4.75/18 should be installed with 0.162 in. x 3-1/2 in. nails and 0.148 in. x 1-1/2 in. nails. Using the correct nail sizes is important for achieving the hanger's rated load performance.
- Can the MIU4.75/18 be field-modified or skewed to fit a different application?
- No. These hangers cannot be modified. They are engineered to exact specifications and must be used as provided. If a different joist size or angle is needed, a different hanger model should be selected.
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FAQs
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