Engineered Lumber

LP® TopNotch® Sub-Flooring

LP® TopNotch® Sub-Flooring features a line of performance OSB sub-flooring available in three options to fit any building project.

LP® TopNotch® Sub-Flooring

LP® TopNotch® Sub-Flooring features excellent strength and stiffness, and is available in three performance levels: 250, 350 and 450:

250:

  • Performance: Excellent strength and stiffness for commodity sub-flooring.
  • Easy Installation: Self-spacing tongue and groove design speeds installation.
  • Innovation: Designed for optimum performance in a commodity product.
  • RainChannel™ Technology: Unique RainChannel notch system to help drain rainwater away during construction.
  • Sustainability: Wood sourced through programs certified under the Sustainable Forestry Initiative®.
  • 25-Year Transferable Limited Warranty: Products backed by long-term warranties so you can build with confidence.

350:

  • Performance: Premium strength, stiffness and moisture resistance.
  • Easy Installation: Self-spacing tongue and groove design speeds installation.
  • Innovation: Designed for optimum moisture resistance.
  • RainChannel™ Technology: Unique RainChannel notch system to help drain rainwater away during construction.
  • Sustainability: Wood sourced through programs certified under the Sustainable Forestry Initiative®.
  • 50-Year Transferable Limited Warranty with 100-Day No Sand Warranty: Products backed by long-term warranties so you can build with confidence.

450:

  • Performance: Maximum strength and stiffness.
  • Easy Installation: Self-spacing tongue and groove design speeds installation.
  • Innovative: Designed for optimum fastener retention.
  • RainChannel™ Technology: Unique RainChannel notch system to help drain rainwater away during construction.
  • Sustainable: Wood sourced through programs certified under the Sustainable Forestry Initiative®.
  • 50-year Transferable Limited Warranty with 200-Day No Sand Warranty: Backed by the best warranty in the
  • LP TopNotch Sub-Flooring series so you can build with confidence.”

PRODUCT SPECIFICATION:

  • Available performance categories from 19/32″ to 1-1/8″
  • Can be used for residential and light commercial applications
  • LP TopNotch Sub-Flooring panels are certified by the APA – The Engineered Wood Association and are manufactured in conformance with U.S. Voluntary Product Standard PS

Additional information may be found in specific LP product literature and in literature from the APA, whose stamp of quality assurance appears on LP OSB products. You may contact LP at 1-888-820-0325 (Toll Free). The APA publications desk number is (253)565-6600 and their extensive literature is available at apawood.org.

Consider LPs other OSB specialty sheathing products designed for wall applications (LP OSB Sheathing, LP LongLength and LP LongLength XL) and roof applications (LP TechShield Radiant Barrier Sheathing).

*Performance Category replaces the fractional nominal thickness used in PS2. The Performance Category is consistent with the panel thickness used in the U.S. model building codes.

AVAILABILITY

AMBRIDGE, PA

DELANCO, NJ

EDISON, NJ

NORTH BERGEN, NJ

HOLTSVILLE, NY

PALMER, MA

FEATURED VIDEO:

HOW IT’S MADE:

  • Starts with the proven strength of LP OSB
  • Adds a proprietary non-combustible, fiberglass-reinforced Pyrotite® treatment
  • Available in a variety of thicknesses for wall assemblies and roof deck applications
  • Available with fire-rated treatment on one or both sides