Patriot Timber Products' SurePly Premium Plywood Underlayment has received an “Extra Heavy” classification per the ASTM standards for ceramic tile installations by the Tile Council of North America (TCNA).
The TCNA sets international standards for the ceramic tile industry. TCNA’s leadership and recommendations are recognized throughout North America as the authoritative voice on the manufacture and installation of ceramic tile. The TCNA’s rigorous laboratory testing procedures and approval process provide objective results for industry professionals in the United States, Mexico, and Canada.