Manton Cork Underlayment, 100% Natural, 4' x 50' x 6mm - Rolls 200 Sq. Ft. Easy to install  Perfect for do-it-yourself home improvement projects Use under hardwood or laminate floors, ceramic tile and stone. Compatible with radiant heat install Extremely effective for sound control - efficient thermal insulation barrier Offers important stress crack protection Cork rolls provide less seams (than sheets). Can be sized to room with a sharp knife or razor blade