Rim Board
Structural rim board supplied through Dynamic Lumber Solutions lumberyard locations for engineered floor systems, wall support, and perimeter load transfer.
Rim Board Supplied Through Our Lumberyards
Dynamic Lumber Solutions supplies rim board as part of complete engineered framing packages through our lumberyard operations. Rim board is commonly specified alongside I-joists and LVLs to create a continuous structural perimeter for floor systems.
Lumberyard Locations
Boise, Idaho
Contractor pickup, jobsite delivery, and physically stocked inventory.
What Is Rim Board?
Rim board is a structural panel installed at the perimeter of floor framing systems. It transfers vertical loads from walls into the floor system, provides lateral stability, and creates a solid attachment point for floor diaphragms, decks, and exterior wall assemblies.
Types of Rim Board
Rim board is manufactured in multiple material types to meet different structural demands and budget considerations:
- OSB Rim Board — Commonly used in single-family and standard residential construction. OSB rim board provides reliable structural performance and is typically the most cost-effective option when permitted by the engineered plans.
- LSL Rim Board — Offers increased strength and stiffness compared to OSB. LSL rim board is often specified where higher loads or reduced deflection are required.
- LVL Rim Board — Used in applications with the highest structural demands, including multi-story, mixed-use, and large-scale framing systems where maximum load capacity and consistency are critical.
Compatible With Engineered Floor Systems
Rim board is designed to integrate directly with engineered floor framing systems, including I-joists and LVL beams. Proper compatibility between rim board depth, material type, and floor system ensures load paths are maintained and framing assemblies perform as intended.
Structural Performance & Design Considerations
Selection of rim board material and thickness is governed by span conditions, wall loads, diaphragm requirements, and engineered design criteria. Final product selection should always follow the structural drawings, manufacturer data, and applicable building codes.