The Simpson 1-3/4 x 7-1/4 Welded Top-Flange Joist Hanger is a purpose-built connector from Simpson designed to support I-joists and dimensional lumber on purlins or beams across a wide range of structural framing applications. Whether the job involves wood-to-wood, wood-to-steel, or cold-formed steel assemblies, this top-flange hanger delivers reliable load transfer in both standard and geometrically complex framing conditions, including skewed and sloped installations.

Key Features

• Welded Top-Flange Construction - Provides a secure, positive seat for the joist and transfers loads efficiently to the supporting member, reducing the risk of connection movement over time.
• Wide Skew Capability up to 84 deg. - Accommodates demanding non-perpendicular framing layouts without requiring custom fabrication on-site, saving time and labor in complex structural configurations.
• Slope Capacity up to 45 deg. - Handles steeply pitched roof and floor framing assemblies, giving structural framers flexibility to work with a single connector type across varied project conditions.
• Multi-Material Compatibility - Approved for wood-to-wood, wood-to-steel, and cold-formed steel framing applications, making it a practical choice for mixed-material structural systems.
• Economical Fastening Design - Achieves maximum download capacity with a minimal number of nails or screws, keeping installed costs low without sacrificing structural performance.
• 12 ga. Steel Stirrup - The 97 mil stirrup thickness provides the structural rigidity needed to maintain joist alignment and connection integrity under load.
• Simpson Strong-Tie Gray Paint Finish - Offers a consistent, corrosion-resistant coating suitable for standard interior framing environments, with hot-dip galvanized options available for more demanding exposure conditions.

Why This Product

• Handles the Most Complex Framing Layouts - With skew tolerance up to 84 deg. and slope tolerance up to 45 deg., this hanger addresses angled and pitched conditions that would require multiple specialty connectors from other product lines, simplifying procurement and installation planning.
• Engineered for Versatile Structural Applications - Compatibility with wood-to-wood, wood-to-steel, and cold-formed steel connections means contractors working on mixed-material projects can rely on a single, proven connector rather than sourcing different hardware for each substrate type.
• Low Installed Cost Without Compromise - The efficient fastening design reaches full download capacity with fewer nails or screws, translating directly to reduced installation time and hardware usage on the jobsite.
• American-Made Quality from Simpson - Produced domestically by Simpson, one of the most recognized names in structural connectors, providing confidence in consistent manufacturing standards and material quality.

Specifications

• Model Number: WP1.81/7.25
• Brand: Simpson Strong-Tie
• Joist Size: 1-3/4 in. x 7-1/4 in.
• Description: 1-3/4 x 7-1/4 Welded Top-Flange Joist Hanger
• Material - Stirrup: 97 mil (12 ga.) steel
• Finish: Simpson Strong-Tie Gray Paint; select models available hot-dip galvanized as a custom order
• Maximum Skew: Up to 84 deg.
• Maximum Slope: Up to 45 deg.
• Country of Origin: United States

Approved Applications

• Supporting joists on purlins or beams in structural framing systems
• Wood-to-wood connections in floor and roof framing
• Wood-to-steel connections for mixed-material structural assemblies
• Cold-formed steel framing applications
• Skewed framing conditions up to 84 deg.
• Sloped framing assemblies up to 45 deg.

Options

• Contact us for Configurable Options and Special orders
• Refer to the Special-Order Worksheet for ease of ordering a Custom WP Hanger