Nudura ICFs consist of two panels of Expanded Polystyrene (EPS) foam that are 2 5/8in (67mm) in thickness and connected together with our patented web system that is made of 100% recycled material. Nudura forms are stacked, steel reinforced and filled with concrete, which completes the building envelope of your commercial or residential structure in one building step. Nudura forms are available in a variety of shapes and sizes to accommodate all types of building requirements and designs.