A dunnage platform is in the general shape of a rectangular slab with legs extending form one side. The dunnage platform is made from an expanded polystyrene core. A chemical combination process is used to chemically combine portion of the core proximal to its surface with high impact polystyrene. In...http://www.google.com/patents/US8142589?utm_source=gb-gplus-sharePatent US8142589 - Method of making a dunnage platform
