The Simpson HGLTV3.56/18.75 is a heavy-duty, top-flange hanger engineered for demanding structural composite lumber (SCL) header applications where high load capacity is essential. Built with a robust combination of 3-gauge steel in the top flange and 7-gauge steel in the stirrup, this hanger delivers exceptional strength and reliability in engineered lumber framing. The innovative Funnel Flange design streamlines beam installation, and strategically positioned fastener holes help prevent lamination splitting - preserving the structural integrity of the header throughout the life of the connection.

Key Features

• High-Load SCL Header Applications: Specifically engineered for structural composite lumber headers requiring high load capacity
• Split-Prevention Hole Placement: Fastener holes are precisely located to prevent degradation caused by splitting of laminations in the header
• Funnel Flange Design: Allows for easy installation of beams, reducing labor time and improving placement accuracy
• Heavy-Duty Top-Flange Configuration: Top-flange mounting provides a strong, stable seat for engineered lumber headers
• Heavy-Gauge Steel Construction: 3-gauge steel top flange paired with 7-gauge steel stirrup for maximum structural performance
• Simpson Strong-Tie Gray Paint Finish: Factory-applied protective finish for standard interior applications
• Hot-Dip Galvanized Option Available: Available in hot-dip galvanized finish for enhanced corrosion resistance where required
• Made in the United States: Domestically manufactured to meet stringent quality standards

Specifications

• Model Number: HGLTV3.56/18.75
• Description: 3-1/2 x 18-3/4 Heavy Duty Top-Flange I-Joist Hanger for Engineered Lumber
• Material - Top Flange: 3 Ga. steel
• Material - Stirrup: 7 Ga. steel
• Finish: Simpson Strong-Tie gray paint
• Optional Finish: Hot-dip galvanized (available upon request)
• Country of Origin: United States

Approved Applications

• Structural composite lumber (SCL) header connections requiring high load transfer
• Engineered lumber framing systems where lamination integrity must be maintained
• Heavy-load beam-to-header connections in residential and commercial construction
• Applications where top-flange hanger installation is specified by design or code
• Installations requiring hot-dip galvanized hardware for corrosion-sensitive environments (with galvanized option)

Configurable Options & Custom Orders

This product is available in configurable options including hot-dip galvanized finish. For configurable options and special orders, please Contact us.

Note: Product dimensions may differ from picture. Please see item description for specifications.

Frequently Asked Questions

What type of lumber is this hanger designed for?

The HGLTV3.56/18.75 is specifically engineered for structural composite lumber (SCL) header applications. It is designed to handle high load capacity requirements common in engineered lumber framing.

What gauge steel is used in this hanger, and why does it matter?

This hanger uses 3-gauge steel in the top flange and 7-gauge steel in the stirrup. This heavy-gauge combination delivers maximum structural performance, making it suitable for demanding, high-load header connections.

How does the Funnel Flange design benefit installation?

The Funnel Flange design allows for easy installation of beams by improving placement accuracy and reducing labor time. This feature simplifies the process of seating engineered lumber headers into the hanger during construction.

Is this hanger available in a corrosion-resistant finish for exterior or high-moisture applications?

Yes. While the standard version comes with a factory-applied Simpson Strong-Tie gray paint finish intended for interior applications, a hot-dip galvanized finish option is also available for applications requiring enhanced corrosion resistance.