The Simpson SPH4 Heavy-Duty Stud Plate Tie is a load-rated, heavy U-shaped strap engineered by Simpson as a stud-to-plate connection to resist roof uplift in wood-frame construction. Its horizontal portion bears against the wood wall top plates or sill plates, while two vertical legs are nailed to the edges of a wood stud, creating a secure mechanical connection. Designed to resist wind and seismic forces, this tie is a cost-effective solution when properly installed before the placement of the wall - making it a practical choice for framing crews who need reliable uplift resistance built right into the structure.

Key Features

• Load rated - gives builders and inspectors confidence that the connection meets defined structural performance requirements
• Designed to resist wind and seismic forces - suitable for use in high-wind regions and seismically active areas where code-compliant uplift connections are required
• Heavy U-shaped strap geometry - the horizontal portion bears squarely against wood wall top plates or sill plates while the two vertical legs secure to the stud edges, distributing load efficiently across the connection
• Does not require top or bottom track attachment - simplifies installation and reduces the number of additional fasteners or hardware needed to complete the connection
• Made from 18-gauge steel - provides a sturdy, rigid strap body capable of handling the demands of structural stud-to-plate applications
• G90 zinc galvanized coating - delivers extra corrosion resistance, helping the tie hold up over time in environments where moisture exposure is a concern
• Cost-effective when installed before wall placement - integrating this tie early in the framing sequence saves time and labor compared to retrofitting uplift hardware after walls are set

Why This Product

• Purpose-built for roof uplift resistance - unlike general-purpose straps, the SPH4 is specifically engineered as a stud-to-plate connection to counter the uplift forces that wind and seismic events place on wood-frame structures, giving builders a targeted solution for a critical structural need
• Simplified installation with no track attachment required - because this heavy-duty strap does not depend on top or bottom track attachment, it fits cleanly into standard framing workflows without adding complex prep steps or extra hardware
• Durable G90 galvanized finish for long-term performance - the zinc galvanized coating provides an added layer of corrosion protection beyond standard coatings, making this stud plate tie a sound investment in connections that need to perform for the life of the structure
• Backed by Simpson engineering and made in the United States - as a load-rated product from Simpson, the SPH4 carries the credibility of a trusted structural connector brand, supporting code compliance documentation and inspection confidence on the job site

Specifications

• Model Number: SPH4
• Width: 3-9/16 in.
• Length: 8-3/4 in.
• Gauge: 18
• Coating/Finish: Zinc Galvanized, G90
• Member Size: 2x stud; 4x plate
• Fasteners Required: (10-12) 0.148 in. x 1-1/2 in. nails
• Country of Origin: United States

Frequently Asked Questions

What is the primary purpose of the Simpson SPH4 Stud Plate Tie?

The SPH4 is a heavy U-shaped strap designed as a stud-to-plate connection to resist roof uplift. Its horizontal portion bears against the wood wall top plates or sill plates, while its two vertical legs are nailed to the edges of a wood stud to create a secure connection.

What type of forces is the SPH4 designed to resist?

The SPH4 is specifically designed to resist wind and seismic forces, making it suitable for use in areas subject to high wind loads or seismic activity.

What fasteners are required to install the SPH4?

Installation requires (10-12) 0.148 in. x 1-1/2 in. nails. For best results, it should be properly installed before the placement of the wall.

What gauge steel is used in the SPH4, and what corrosion protection does it have?

The SPH4 is made from 18-gauge steel and features a G90 zinc galvanized coating, which provides extra corrosion resistance for long-lasting performance in demanding environments.