Finally a green alternative for underlayment and backer board.

X-Treme Board™ is a better environmental alternative and upgrade to replace gypsum drywall and cement backer boards for walls, floors and counter tops. Meets and exceeds, IRC, ASTM and ANSI

  • Highest flame and smoke rating
  • Water Resistant; not affected by moisture
  • Naturally Mold and Mildew Resistant
  • Sound rated
  • Guaranteed to not buckle, swell or expand

X-Treme Board™ can be installed as a finished wall panel by installing smooth side out. Install rough side out for tile installations.



The U.S. Green Building Council is the nation's foremost coalition of leaders from across the building industry working to promote buildings that are environmentally responsible, profitable and healthy places to live and work.

What is green building?

Green Building refers to the use of environmentally preferable materials in construction projects. It has been only recently that we have been able to find green building products at home centers, hardware, or flooring distributors.

Learn more about green building