Stand-Up-Guy is a free standing clamp that can hold a solid core door horizontally to prep for hanging. It can be used to hold windows, plywood, signage, room dividers and many other materials that carpenters and do-it-yourselfers often work with. Made of heavy gauge ABS plastic, it is virtually unbreakable. Stand-Up-Guy is developed and manufactured by Blue Heron Enterprises, LLC manufacturers of the award winning EB-TY Hidden Fastening System.