Expanded Polystyrene - EPS (thermacol) is a rigid, light thermoplastic, closed cell foam plastic. By controlling the density of the expanding beads during the manufacturing process, we can custom produce insulation and cushioning materials to the specific requirements of your applications. Size: 4’ x 8’ Thickness: 1/2”(12.5mm), 3/4”(20mm), 1” (25mm), 1.2”(30mm), 1.5”(37.5mm), 1.6”(40mm), 2” (50mm), 21/2”(62.5mm), 3” (75mm), 4” (100mm), 6” (150mm), 8” (200mm), 10” (250mm), 11”(280mm)