I purchased 8 cases of Corecell M80 and M120 for a project. I have a bunch left over. It is the Corecell M (marine) you can google it. It's 13/16 (20mm) 3/4" good for decks, floors, hatches etc. I am in St Augustine and will ship. I have 4X4 and smaller. Also have 6" beveled 45 degrees for the edges. Good stuff and you don't have to buy a full sheet. 305-992-5338