The EHH-3 is constructed of a 3/4” sustainable, moisture resistant composite wood core and clad full height on both sides with 20 gauge stainless steel. Standard scratch-resistant 9" x 14" acrylic vision panels are installed flush to the surface of the door panel to provide a very sleek appearance. These doors operate on our unique patented "Hidden Hinge" system. The hinge is mounted on the back side of the door panel, hidden from customer view and operates on the same design principle as our Easy Swing Hinge. Custom size windows, impact plates, and other options are available.