Simpson Strong-Tie WP38 (3″ x 8″) Welded Top-Flange Joist Hanger

Simpson Strong-Tie WP38 Features

• Highly modifiable with alteration options including opened/closed top flange and offset top flange
• Top flange may be sloped to a maximum of 35° to accommodate a sloped header
• Features a solid one-piece top flange that provides extra stability in panelized roof applications
• Design Flexibility: Can be skewed up to 84° and sloped up to 45° for versatile installation in complex framing applications
• Heavy-Duty Construction: Manufactured from 12-gauge steel for enhanced strength and durability
• Corrosion-Resistant Finish: Simpson Strong-Tie gray paint provides protection against environmental factors
• Customizable Styles: Available in Type A (bevel-cut) or Type B (square-cut) to accommodate solid sawn and engineered wood applications

Simpson Strong-Tie WP38 Applications

• Residential and Commercial Projects: Ideal for floor, ceiling, and roof framing in various structural applications
• Joist-to-Purlin Connections: Ensures a secure, load-bearing connection between wood joists and steel or wood beams
• Wood-to-Steel Construction: Suitable for installations requiring welded steel headers

Simpson Strong-Tie WP38 Installation Overview

1. Use all specified fasteners.
2. H dimensions are sized to account for normal joist shrinkage. W dimensions are for dressed timber widths.
3. The WP may be used for weld-on applications. The minimum-size weld is a 1 1/2″-long fillet weld to each side of the top flange; weld size to match hanger material thickness.
4. Hangers can support multi-ply carried members; the individual members must be secured together to work as a single unit before installation into the hanger.
5. Non-modified hangers can support joists sloped up to 1/4:12 using table loads. For joists sloping between 1/4:12 and 3/4:12 use 85% of the table loads.
6. Web stiffeners are required for these hangers when using engineered wood.
7. For attaching to multi-ply headers in engineered wood applications, refer to technical bulletin Top-Flange Hanger Reductions for Multiple-Ply Headers.