They are used to construct sleek, modern buildings with complex geometries and large, open spaces They are used to construct sleek, modern buildings with complex geometries and large, open spacesfiberglass shell. Their moldability allows architects to bring their most imaginative designs to life, while their insulating properties contribute to energy efficiency.ADA compliant Ecograte 62 is specifically designed to meet requirements of the National Marine Fisheries Service and U.S. Army Corps of Engineers for marine decking and docks. With a 3/4” x 4” mesh and 62% open area, this grating protects seagrass and other shallow marine habitats beneath docks. Ecograte®62 comes with a standard coarse grit walking surface or the optional Aqua Grit (fine grit) surface which provides increased comfort under bare feet.