The Simpson THAI-2 Adjustable I-Joist Truss Hanger is a purpose-built structural connector engineered specifically for I-joist applications where height adjustability and top-flange installation are required. Its extra-long straps are designed to be field-formed over the top of the header, giving installers the flexibility to achieve precise joist alignment on the job site. With a configurable width design and positive-angle nailing that helps protect the I-joist bottom flange from splitting, this hanger is a dependable solution for contractors and builders working on framing projects that demand both adaptability and structural integrity.

Key Features

• Extra-Long Field-Formable Straps - Straps are designed to be bent over the top of the header on site, giving installers height adjustability without requiring pre-fabricated or custom-ordered components for every application.
• Top-Flange Hanger Configuration - Designed for top-flange installations, this hanger simplifies attachment to the header and supports cleaner, more efficient framing workflows.
• Positive-Angle Nailing Design - Helps eliminate splitting of the I-joist bottom flange during fastening, preserving the structural integrity of the joist and reducing the risk of installation damage.
• Configurable Width - The THAI-2 is a configurable-width hanger, allowing the appropriate width to be selected for the specific I-joist being used, ensuring a proper fit for the intended application.
• 14-Gauge Galvanized Steel Construction - Heavy-gauge steel with a galvanized finish provides the strength and corrosion resistance needed for demanding structural framing environments.
• Web Stiffener Compatibility Requirement - Designed for use where web stiffeners are applied, which means the connection system accounts for the full structural load path of the I-joist assembly - an important consideration for code-compliant installations.

Why This Product

• Built for I-Joist Framing Specifically - Unlike general-purpose joist hangers, this connector is engineered around the unique geometry and structural requirements of I-joists, including bottom-flange protection and web stiffener compatibility, making it a more appropriate choice for engineered lumber framing.
• Field Adjustability Reduces Installation Headaches - The ability to form the straps over the header on site means installers can accommodate minor height variations during framing without needing to source a different hanger, saving time and reducing material waste on the job.
• Configurable Width Supports Multiple I-Joist Sizes - Rather than stocking multiple fixed-width hangers, the THAI-2 width can be configured to match the specific I-joist width required, offering flexibility across different framing scenarios with a single product platform.
• Positive-Angle Nailing Protects the Joist Investment - Engineered lumber I-joists represent a significant material cost in modern construction. The positive-angle nailing design actively reduces the risk of splitting the bottom flange during installation, helping protect the joist from damage that could compromise load performance.

Specifications

• Model Number: THAI-2
• Manufacturer Part Number (MPN): THAI-2
• Description: Adjustable I-Joist Truss Hanger (Configurable Width W1)
• Material: 14 Gauge Steel
• Finish: Galvanized
• Quantity: 1 Hanger

Approved Applications

• Designed for use with I-joists requiring adjustable hanger connections.
• Suitable for top-flange hanger installations where field-forming over the header is required.
• For use where web stiffeners are applied - web stiffeners are required for all I-joists used with these hangers.

What's Included

• 1 x Simpson THAI-2 Adjustable I-Joist Truss Hanger

Configurable Options & Custom Orders

The THAI-2 hanger width is configurable (W1). Factory-order the THAI-2 for the hanger width needed - see the allowable widths table for specifications. Use all specified fasteners and verify that the header can take the fasteners specified in the table. Contact us for Configurable Options and Special orders.

Note: Product dimensions may differ from picture.

Frequently Asked Questions

Is the THAI-2 compatible with standard lumber joists, or is it designed specifically for I-joists?

The Simpson THAI-2 is engineered specifically for use with I-joists. Its positive-angle nailing design is intended to help eliminate splitting of the I-joist's bottom flange, making it unsuitable as a direct replacement for hangers designed for standard dimensional lumber.

How does the height adjustability work on the THAI-2?

The THAI-2 features extra-long straps that can be field-formed over the top of the header during installation to provide height adjustability. For top nailing installations, the straps must be formed over the top of the header by a minimum of 21/2 inches.

How many nails are required to achieve the maximum load capacity of the THAI-2?

Maximum load capacity is achieved when a total of 30 face nails are used in the THAI-2 straps. Additionally, the lowest face nails must be filled to achieve the rated uplift loads.

What material and gauge is the THAI-2 made from?

The THAI-2 is constructed from 14-gauge galvanized steel, which provides both structural strength and corrosion resistance for demanding applications.