The Simpson WP5.50/18 Welded Top-Flange Joist Hanger is a heavy-duty 5-1/4 x 18 hanger built for demanding structural framing applications where a secure, reliable joist-to-beam or joist-to-purlin connection is essential. Engineered by Simpson Strong-Tie, this top-flange hanger handles wood-to-wood, wood-to-steel, and cold-formed steel framing scenarios, making it a highly capable choice for contractors and builders working across a wide range of construction conditions.

Key Features

• Welded top-flange construction - provides a rigid, pre-formed connection that installs quickly and holds firmly without requiring complex field fabrication
• Skew flexibility up to 84 deg. - accommodates significantly non-perpendicular framing layouts, reducing the need for custom cutting or costly workarounds on angled installations
• Slope support up to 45 deg. - handles steep pitched framing conditions that many standard hangers cannot, expanding the range of projects this single hanger can serve
• Multi-application compatibility - supports wood-to-wood, wood-to-steel, and cold-formed steel connections, so one hanger model covers multiple structural framing scenarios
• 12 ga. stirrup material - heavy-gauge steel construction delivers the load-carrying capacity expected in commercial and residential structural work
• Simpson Strong-Tie Gray Paint finish - provides baseline corrosion resistance for interior and protected framing environments right out of the box

Why This Product

• Unmatched angular range - with skew capacity up to 84 deg. and slope support up to 45 deg., this hanger addresses framing conditions that would require multiple specialized products elsewhere, simplifying procurement and installation planning
• Broad substrate compatibility - approved for wood-to-wood, wood-to-steel, and cold-formed steel applications, this top-flange I-joist hanger adapts to the actual materials on the job site rather than locking you into a single framing system
• Heavy-gauge welded design for structural confidence - the 12 ga. stirrup and welded assembly deliver the rigidity and strength that load-bearing joist connections demand, giving builders confidence in long-term structural performance
• Trusted Simpson Strong-Tie engineering - produced in the United States under the Simpson Strong-Tie name, this hanger carries the brand recognition that engineers, inspectors, and contractors rely on for approved structural connector applications

Specifications

• Model Number: WP5.50/18
• Brand: Simpson Strong-Tie
• Joist Size: 5-1/4 in. x 18 in.
• Description: 5-1/4 x 18 Welded Top-Flange Joist Hanger
• Material: Stirrup - 97 mil (12 ga.)
• Finish: Simpson Strong-Tie Gray Paint; some 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
• Wood-to-wood connections
• Wood-to-steel connections
• Cold-formed steel framing applications
• Skewed framing conditions up to 84 deg.
• Sloped installations 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

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