The Simpson ITS3.56/14 Top-Flange I-Joist Hanger from Simpson is an engineered wood hanger built for fast, reliable 90 deg. connections of 3-1/2 in. x 14 in. I-joists to headers and beams. The innovative Strong-Grip seat and Funnel Flange design eliminate the need for joist nails during standard installation, reducing labor and hardware costs while maintaining a strong, secure connection. Made in 18-gauge steel with a G90 zinc galvanized finish, this top-flange hanger is a dependable choice for residential and commercial framing projects where engineered wood products are specified.

Key Features

• Strong-Grip seat accommodates flange thickness from 1 1/8 in. to 1 1/2 in. - fits a wide range of standard engineered I-joists without modification, reducing the chance of compatibility issues on the job site.
• No joist nailing required for standard I-joist installation without web stiffeners - speeds up the framing process and lowers the total number of fasteners needed, cutting both labor time and material cost.
• Sized for 3-1/2 in. x 14 in. engineered wood members - precisely matched to the joist so the hanger seats correctly and delivers full rated load capacity without field adjustments.
• Formed from 18-gauge steel - provides a sturdy, rigid hanger that maintains its shape during installation and under sustained structural loads.
• G90 zinc galvanized coating - delivers extra corrosion resistance, making this hanger a suitable choice for framing in areas subject to moisture exposure.

Why This Product

• Faster installation than conventional EWP top-flange hangers - the Funnel Flange design guides the I-joist into position quickly, and the elimination of joist nailing in standard applications means fewer steps from start to finish.
• Lower installed cost through reduced fastener use - because standard I-joist installation requires no joist nails, contractors spend less on hardware and less time driving fasteners, making this hanger cost-effective on projects with repetitive joist layouts.
• Broad I-joist flange compatibility in a single hanger - the Strong-Grip seat secures flanges ranging from 1 1/8 in. to 1 1/2 in. thick, so one hanger model covers multiple engineered wood product lines without requiring substitutions.
• Built-in corrosion protection for long-term performance - the G90 galvanized finish goes beyond a basic coating, giving this connector added durability in crawl spaces, covered decks, and other environments where moisture is a recurring concern.

Specifications

• MPN: ITS3.56/14
• Brand: Simpson Strong-Tie
• Member Size: 3-1/2 in. x 14 in.
• Gauge: 18
• W: 3-5/8 in.
• H: 13-15/16 in.
• B: 2 in.
• Coating/Finish: Zinc Galvanized, G90
• Install With: 0.148 in. x 3 in. nails (sold separately)
• Top Flange: 1-7/16 in.
• Country of Origin: United States

Options

• Contact us for Configurable Options and Special orders

Frequently Asked Questions

What joist flange thickness is compatible with the ITS3.56/14?

The Strong-Grip seat on the ITS3.56/14 firmly secures I-joists with flange thickness ranging from 1 1/8 in. to 1 1/2 in., making it compatible with a wide range of standard engineered wood I-joists.

Do I need to nail through the joist when installing this hanger?

No. The ITS3.56/14 requires no joist nailing for standard I-joist installation without web stiffeners. The Strong-Grip seat and Funnel Flange design hold the joist securely without the need for joist nails.

What fasteners are recommended for installing the ITS3.56/14?

This hanger should be installed with 0.148 in. x 3 in. nails for proper performance and code compliance.

What corrosion protection does the ITS3.56/14 provide?

The ITS3.56/14 features a G90 zinc galvanized coating, which provides extra corrosion resistance and makes it suitable for use in applications where moisture exposure is a concern.

Note: Product dimensions and/or fastener holes may differ from picture. Please see item description for specifications.