The Simpson ITS2.56/11.88 Top-Flange Joist Hanger from Simpson sets a new standard for engineered wood product top-flange hangers, delivering faster installation and a lower installed cost than traditional EWP hanger solutions. Designed to support I-joist-to-header connections, this hanger accommodates actual joist sizes of 2-1/2 in. to 2-9/16 in. x 11-7/8 in. and features the innovative Strong-Grip seat and Funnel Flange design, allowing standard I-joist installation without joist nails or web stiffeners. Built from 18-gauge steel with a Zinc Galvanized G90 coating, it is engineered for strength and corrosion resistance across a wide range of structural framing applications.

Key Features

• Strong-Grip seat secures I-joists with flange thickness from 1 1/8 in. to 1 1/2 in. - provides a firm, reliable hold across a broad range of engineered wood products without extra hardware.
• No joist nailing required for standard I-joist installation without web stiffeners - reduces labor time and fastener costs, making this one of the most efficient EWP hangers to install.
• Funnel Flange feature guides the joist into position - speeds up placement during installation, minimizing alignment errors and keeping projects on schedule.
• Installs faster and uses fewer nails than other EWP top-flange hangers - delivers the lowest installed cost when working with engineered lumber framing systems.
• Made from 18-gauge steel with a Zinc Galvanized G90 coating - provides extra corrosion resistance, making the hanger suitable for demanding job site and long-term service environments.
• Install with 0.148 in. x 3 in. nails (sold separately) - uses a common, readily available fastener size so there is no need to source specialty hardware for header connections.

Why This Product

• Engineered for speed on the job site - the Strong-Grip seat and Funnel Flange work together to eliminate joist nailing for standard installations, meaning crews spend less time per connection and more time moving the project forward.
• Broad compatibility with engineered wood products - the seat accepts I-joist flange thicknesses from 1 1/8 in. to 1 1/2 in., giving framers flexibility across common EWP sizes without switching to a different hanger model.
• Durable G90 galvanized steel construction - the zinc galvanized finish applied to 18-gauge steel delivers reliable corrosion resistance, supporting long-term structural integrity in a variety of framing environments.
• Lower total installed cost compared to traditional EWP top-flange hangers - fewer nails, faster placement, and no required joist nailing add up to real savings on material and labor for engineered lumber floor and roof framing projects.

Specifications

• MPN: ITS2.56/11.88
• Brand: Simpson Strong-Tie
• Member Size: 2-1/2 to 2-9/16 x 11-7/8 in.
• Seat Width (W): 2-5/8 in.
• Height (H): 11-13/16 in.
• Base (B): 2 in.
• Gauge: 18
• 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 thicknesses does the ITS2.56/11.88 accommodate?

The Strong-Grip seat is designed to firmly secure I-joists with flange thickness from 1 1/8 in. to 1 1/2 in., making it compatible with a wide range of engineered wood products.

Does this joist hanger require nails through the joist itself during installation?

No. No joist nailing is required for standard I-joist installation without web stiffeners. The Strong-Grip seat and Funnel Flange features hold the joist securely without the need for joist nails, which reduces installation time and material costs.

What fasteners should be used to install the ITS2.56/11.88?

This hanger is designed to be installed with 0.148 in. x 3 in. nails for proper connection to the supporting header or beam.

What corrosion protection does this joist hanger have?

The ITS2.56/11.88 features a Zinc Galvanized (G90) coating applied to 18-gauge steel, providing extra corrosion resistance suitable for a variety of installation environments.

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