The Simpson 2-1/2 x 18 Heavy I-Joist Top-Flange Hanger from Simpson is purpose-built for standard 90 deg. connections of I-joists to headers, delivering the heavy-duty structural support that demanding floor and roof framing applications require. Engineered with positive-angle nailing technology and extra triangle holes for enhanced uplift resistance, this top-flange hanger is a dependable choice for contractors and builders who need reliable, installation-friendly performance in I-joist framing systems.

Key Features

• Standard 90 deg. I-joist-to-header connection design - ensures a predictable, code-friendly fit for typical perpendicular framing installations, reducing layout guesswork on the job site.
• Heavy top-flange hanger construction - provides robust load-bearing capacity suited to demanding structural applications where standard-gauge hangers fall short.
• Positive-angle nailing (PAN) technology - directs nails at an angle specifically suited to I-joist geometry, minimizing the risk of splitting the web or flange and preserving the joist's structural integrity during fastening.
• Extra triangle holes - allow higher uplift loads to be achieved, giving this hanger added versatility in framing situations subject to wind uplift or other upward forces.
• Zinc Galvanized, G90 finish on 16-gauge steel - combines corrosion resistance with heavy-duty strength, helping the hanger hold up in the environments typical of structural framing.

Why This Product

• Built for I-joist framing from the ground up - unlike generic joist hangers, this hanger's PAN feature and top-flange design are specifically engineered around I-joist installation requirements, making it a purpose-matched solution rather than a workaround.
• Uplift performance beyond the basics - the extra triangle holes provide higher uplift load capacity than a standard hanger configuration, giving builders a single product that handles both gravity and uplift demands in one connection.
• American-made quality from a trusted structural connector brand - Simpson's long-standing reputation in structural connectors, combined with domestic production, supports confidence in material consistency and quality control.
• Installation-friendly features that protect your materials - positive-angle nailing reduces splitting risk during fastening, helping preserve the integrity of the I-joist and avoiding costly rework or joist replacement on the job.

Specifications

• Model No.: HIT318
• Joist Size (in.): 2-1/2 x 18
• Gauge: 16
• W (in.): 2-9/16
• H (in.): 18
• B (in.): 3
• Finish: Zinc Galvanized, G90
• Country of Origin: United States

Frequently Asked Questions

What type of connection is the HIT318 designed for?

The HIT318 is designed for standard 90-degree connections of I-joists to headers, making it a reliable choice for typical framing applications where a perpendicular joist-to-header connection is required.

What is positive-angle nailing (PAN) and why does it matter for I-joists?

Positive-angle nailing (PAN) is a feature specifically engineered for use with I-joists. It directs nails at an angle that minimizes the risk of splitting the I-joist web or flange during installation, helping to preserve the structural integrity of the joist.

What do the extra triangle holes on the HIT318 do?

The extra triangle holes on the HIT318 allow for higher uplift loads to be achieved. This gives the hanger greater capacity to resist upward forces, which is particularly beneficial in applications subject to wind uplift or other uplift-generating loads.

What finish does the HIT318 have, and what gauge steel is it made from?

The HIT318 features a Zinc Galvanized, G90 finish for corrosion resistance and is constructed from 16-gauge steel, providing the heavy-duty strength required for demanding structural connections.

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