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Reliable lateral load transfer for stronger, more unified floor systems
High crushing strength for safe support beneath load‑bearing walls
Height‑matched to joists for clean installation and better exterior finishing
High‑strength Rim Boards for Secure Floor‑to‑wall Connections in Cornwall and Surrounding Regions
At St. Lawrence Structures St‑Laurent Inc., we supply high‑quality rim boards designed to provide essential lateral load transfer between floor joists. These components play a critical role in tying the floor system together, improving overall structural stability, and supporting proper load distribution across the building envelope.
Rim boards feature very strong crushing values, allowing them to safely support loads from walls, multi‑storey framing, and exterior bearing elements without compression issues. This makes them an ideal choice for homes, multiplex units, light commercial buildings, and agricultural structures across Cornwall, Ottawa, Rockland, Hawkesbury, Limoges, and surrounding areas.
Each rim board is manufactured to match the height of the floor joists, creating a seamless connection and simplifying installation. This height match also produces a uniform, flat surface for siding installations, helping improve the exterior finish quality while reducing alignment issues on site.
Whether you’re completing a new build, addition, or multi‑unit project, our rim boards deliver consistent performance and dependable structural support designed for Canadian building conditions.
Benefits of Rim Boards
Transfers lateral loads between joists
Helps tie the entire floor system together for improved structural integrity.
Strong crushing resistance
Supports loads from walls above without compression; ideal for multi‑storey and load‑bearing walls.
Matches joist height
Ensures a clean, consistent floor‑to‑wall connection and smooth exterior transitions.
Flat surface for siding installation
Provides a uniform backing that helps siding materials install cleanly and securely.
Ideal Applications
Rim boards supplied by St. Lawrence Structures St‑Laurent Inc. are used in:
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single‑family home construction
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multi‑unit residential buildings (4–10 units)
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additions and renovations
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light commercial framing
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agricultural structures
