"Cem-Rock Extreme Floor" logo with green and gray typography.

  • Cemrock Floor is a high-quality structural Magnesium Oxide (MgO) board specifically designed for flooring applications over wood or metal framing. Serving as a superior alternative to plywood or OSB, it is fiber-reinforced to enhance strength in building projects while providing a durable, permanent barrier against moisture intrusion. This versatile board is suitable for a wide range of flooring types and exterior decking applications, offering a robust and long-lasting solution.. Its advanced properties ensure reliable performance and protection in demanding environments.

  • High impact resistance

    Structural Sub-floor

    Non-combustible to ASTM E136

    Environmentally friendly

    Termite resistant and Mold resistant

    Non-toxic and Non-hazardous

  • 4’ x 8’

    4’ x 9’

    4’ x 10’

  • 3/4”

  • Tongue and Groove (T&G)

    Square

    Shiplap

    Custom edges available upon request

  • Grey,

    White (special order)

Close-up of a textured composite flooring board with a tongue and groove design, featuring a layered structure and speckled surface.