The Simpson 7 in. x 9 in. Retrofit Foundation Plate is engineered to connect the mudsill to the foundation while providing lateral load resistance in retrofit applications. Designed with prescriptive compliance in mind, this flat retrofit foundation plate offers two distinct fastening configurations - filling the three round holes, or as an alternative, filling two optional triangle holes - giving designers the ability to achieve increased loads and greater spacing for wind and earthquake loading conditions.

Key Features

• Two fastening configurations available - choose between the three round holes or the two optional triangle holes to meet specific load and spacing requirements for your project
• Supports increased wind and seismic loads - the triangle-hole option unlocks higher allowable loads, making this plate well-suited for demanding lateral load applications
• Accommodates up to a 1 1/2 in. offset sill plate - provides the installation flexibility needed in retrofit situations where the sill plate is not perfectly flush with the foundation
• Made from 7-gauge steel - heavy-gauge construction delivers the strength and rigidity required for structural mudsill-to-foundation connections
• Zinc Galvanized G90 finish - corrosion-resistant coating helps ensure long-lasting performance in conditions where moisture exposure is a concern
• Installs with standard hardware - compatible with 1/2 in. diameter anchor bolts and 1/4 in. x 2 1/2 in. Strong-Drive SDS Heavy-Duty Connector screws for a straightforward installation process

Why This Product

• Built-in design flexibility for retrofit projects - the choice between round-hole and triangle-hole fastening patterns lets designers maintain prescriptive requirements or step up to increased load capacities, all within a single connector
• Purpose-built for mudsill retrofit connections - the flat plate profile and offset sill plate compatibility address the real-world conditions commonly encountered when reinforcing existing foundations against wind and earthquake forces
• Simpson engineering backed by domestic production - made in the United States to Simpson's quality standards, this connector is designed to perform reliably in structural retrofit applications where load resistance is critical
• Corrosion resistance built into the design - the G90 galvanized coating means the plate is equipped to hold up over time, reducing long-term maintenance concerns in exposed or demanding installation environments

Specifications

• Model No.: FRFP
• Width: 9 in.
• Height: 7 in.
• Gauge: 7
• Coating/Finish: Zinc Galvanized, G90
• Country of Origin: United States

Downloads and Resources

• View Specifications

Frequently Asked Questions

What is the purpose of the Simpson FRFP Retrofit Foundation Plate?

The FRFP is designed to connect the mudsill to the foundation and provide lateral load resistance, making it suitable for retrofit applications where wind or earthquake loading resistance is required.

What are the fastening options available with the FRFP?

The FRFP offers two fastening configurations: filling the three round holes, or as an alternative, filling two optional triangle holes. The triangle-hole option allows designers to achieve increased loads and greater spacing. Install with 1/2 in. diameter anchor bolts and 1/4 in. x 2-1/2 in. Strong-Drive SDS Heavy-Duty Connector screws.

Can the FRFP be used with an offset sill plate?

Yes. The FRFP can accommodate up to a 1-1/2 in. offset sill plate, providing additional flexibility for retrofit installations where the sill plate is not perfectly flush with the foundation.

What material and corrosion protection does the FRFP feature?

The FRFP is made from 7-gauge steel and finished with a Zinc Galvanized G90 coating, which provides extra corrosion resistance for long-lasting, reliable performance in demanding conditions.