Corrugated plastic sheet - also called pp plate sheet, Coroplast, FlutePlast, Fluted Polypropylene Sheet, Correx, Twinplast and Corflute etc - refers to a wide range of extruded twinwall plastic sheet. Polypropylene Hollow Corrugated Plastic Sheet Specification: Commonly used size: 4x8(1220x2440mm); 5x8(1524x2440mm); 1600x2600mm; 1000x2000mm etc. Width:2200mm Length: Any length Thickness: 2mm-12mm Density: 300-2300 GSM