Product Description
The Simpson ITS1.81/11.88 Top-Flange Joist Hanger from Simpson is an innovative engineered wood hanger engineered to make I-joist framing faster, easier, and more cost-effective. Designed for 90 deg. connections of engineered wood I-joists to headers, this top-flange hanger raises the bar for EWP hanger installation by combining a Strong-Grip seat with a Funnel Flange design that secures joists firmly without requiring nails driven into the joist itself. The result is a streamlined installation process that reduces hardware needs and labor time on every connection point.
Key Features
- Strong-Grip seat accommodates flange thicknesses from 1 1/8 in. to 1 1/2 in. - fits a wide range of I-joist flanges securely without extra hardware or shimming, keeping your framing tight and consistent.
- No joist nailing required for standard I-joist installation without web stiffeners - eliminates a time-consuming step, letting crews work faster and reducing the total number of fasteners needed on the job.
- Sized for 1-3/4 in. x 11-7/8 in. engineered wood joists - precision-matched to common EWP dimensions so the hanger drops into place without field modification or guesswork.
- Formed from 18-gauge steel - provides a robust, rigid connection point capable of handling the structural demands of engineered wood framing applications.
- Zinc Galvanized, G90 coating - delivers extra corrosion resistance that helps the hanger hold up in moisture-prone environments and extends the service life of the connection.
Why This Product
- Fewer nails, faster installation - the Funnel Flange and Strong-Grip seat work together to eliminate joist nailing for standard installations, directly cutting labor time and installed cost compared to conventional EWP top-flange hangers.
- Built for engineered wood framing - purpose-designed for I-joist construction, this hanger handles the specific flange dimensions and load-path requirements that come with EWP framing, giving builders a reliable solution for engineered lumber applications.
- Corrosion-resistant for demanding conditions - the G90 galvanized finish provides a meaningful layer of protection in crawl spaces, exterior-adjacent framing, and other environments where moisture exposure is a concern.
- Made in the United States to Simpson standards - manufactured domestically and backed by Simpson's reputation for structural connector quality, giving contractors and inspectors confidence in every connection.
Specifications
- MPN: ITS1.81/11.88
- Brand: Simpson Strong-Tie
- Member Size: 1-3/4 in. x 11-7/8 in.
- Gauge: 18
- Width (W): 1-7/8 in.
- Height (H): 11-13/16 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
Note: Product dimensions and/or fastener holes may differ from picture. Please see item description for specifications.
Frequently Asked Questions
What size engineered wood joist is this hanger designed for?
This hanger is designed for engineered wood joists with an actual size of 1-3/4 in. x 11-7/8 in.
Does this hanger require nails to be driven into the joist during installation?
No. The Strong-Grip seat and Funnel Flange design allow standard I-joist installation without requiring joist nails, provided web stiffeners are not used, which helps reduce installation time and overall cost.
What I-joist flange thicknesses does the Strong-Grip seat accommodate?
The Strong-Grip seat is designed to firmly secure I-joists with flange thicknesses ranging from 1 1/8 in. to 1 1/2 in.
What type of corrosion protection does this hanger have?
This hanger features a Zinc Galvanized, G90 coating, which provides extra corrosion resistance for enhanced durability in demanding conditions.
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