LP Solidstart Rim Board

Designed to match our LP® SolidStart® I-Joists, they are available in several depths and thicknesses. LP’s SolidStart Rim Board offers straightforward and quick installation as well as high-strength reliability.

Product Benefits


High lateral load capacity for seismic and high wind applications. High vertical load capacity for mid-rise construction.


Precision-cut to match depths of LP SolidStart I-Joists, and creates flat surfaces for easy installation of siding.

Peace of Mind

Approved for one-hour and two-hour fire-rated rim board assemblies for party and exterior walls.


Wood sourced through programs certified under the Sustainable Forestry Initiative®.


High strength and low shrinkage.

Product Specifications

  • Available options include rim board manufactured from OSB and LSL
  • Available Thicknesses: 1˝ (OSB), 1-1/8˝ (OSB), 1-1/4˝ (LSL), 1-1/2˝ (LSL)
  • Available Depths: 9-1/2˝, 11-7/8˝, 14˝, 16˝, 18˝, 20˝, 24˝
  • Available Standard Lengths: 12´, 16´
  • 1-1/4" LP SolidGuard LSL Rim Board is also available for applications that require treatment.
  • Please verify availability with the LP SolidStart Engineered Wood Products distributor in your area before specifying these products.



rim board

How It's Made

LP® SolidStart® Rim Board is made from two substrates to meet a variety of building needs: OSB and LSL.

  • OSB: Thermal-set, waterproof adhesives and wood strands are bonded, cross-directionally layered, and then pressed under extreme heat and pressure.
  • LSL: Mix of aspen and maple hardwoods are bonded together with a waterproof adhesive in a steam injection press.
man nailing board

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