LP® SolidStart® LSL installs like traditional lumber, but surpasses it in strength and consistency. It’s strong, straight and ideal for a variety of applications. Long lengths and uniform dimensions reduce jobsite waste and low moisture content reduces shrinkage.

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LP SolidStart LSL Benefits

Manufactured by the leader in strand board technology, LP® SolidStart® LSL has engineered strength that allows for longer spans and greater design flexibility. Available in various sizes, it features:

  • Strength: Available in 1.75E grade, the industry’s highest grade of LSL.
  • Efficiency: Faster installation (buildup not required for 2x4 frame).
  • Versatility: Use for floor beams, door and window headers, garage door headers, roof and wall framing, rim board, stair stringers and sill plates.
  • Peace of Mind: Consistent low moisture content helps resist twisting, warping and shrinking.
  • Sustainability: Wood sourced through programs certified under the Sustainable Forestry Initiative®.
  • Lifetime Limited Warranty: Backed by a long-term warranty so you can build with security and confidence. See full complete warranty details for more information.

How It’s Made

LP® SolidStart® LSL’s manufacturing process provides superior performance with less shrinking, warping and twisting.

  • Made from a mix of sustainably harvested aspen and maple hardwoods for greater strength
  • A steam injection press results in low moisture content (7%–10%) similar to the conditions inside a home
  • End- and edge-sealed to reduce swelling

Product Specifications

Available thicknesses: 1-1/2˝, 1-3/4˝, 3-1/2˝

Available depths: 3-1/2˝, 4-3/8˝, 5-1/2˝, 7-1/4˝, 9-1/4˝ 9-1/2˝, 11-1/4˝, 11-7/8˝, 14˝, 16˝, 18˝, 20˝, 22˝, 24˝

Available grades: 1.35E, 1.55E, and 1.75E (the industry’s highest grade of LSL)

Available in most framing lumber sizes

Available in precision end-trimmed lengths upon request 

Edges and ends are sealed to reduce swelling

Product Videos

How Is It Made: LP SolidStart LSL

Learn more about how LP makes LP SolidStart LSL.

LP SolidStart LSL Case Study

Learn why LP SolidStart LSL is the right choice.

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