Cork Sheets are quick and easy to install. Our premium cork sheet underlayment comes in 6mm (1/4") and 12mm (1/2") thickness. Using pre-cut cork sheet underlayment creates less waste, and there are no bubbles to deal with. Cork is a natural and sustainable product that reduces sound, creates cushion and prevents stress cracks. Cork underlayment can be used under tile, porcelain, stone, laminate, engineered click wood floors and carpet. Cork is a natural fire inhibitor. It does not spread flame or release toxic gases on combustion. Cork is naturally anti-allergenic, which creates healthy indoor air and will not deteriorate after years of use.