Used by top builders and carried by leading suppliers, LP® TopNotch® 350 Durable Sub-Flooring is designed for optimum stability in both directions and its smooth surface is sanded to lay flat. LP TopNotch 350 creates a strong, smooth foundation for a variety of finished flooring.

Features

• Incredible strength, stiffness and moisture resistance.
• Self-spacing tongue and groove design speeds installation.
• Designed for optimum moisture resistance.
• Unique RainChannel notch system to help drain rainwater away during construction.