Abstract: A hinged sign face assembly is provided for use on a standard sign box. The assembly may be retrofitted on an existing sign box to facilitate access to fluorescent light tubes and other components inside the sign box. The assembly pivots the face of a sign box to an open position to allow interior components to be accessed without the need for disassembling the sign box frame. The assembly includes a hinge adapter that mounts to a standard sign box. The hinge adapter is operable with commercially available components to convert a rigid standard sign box to a hinged sign box. The assembly may also include a hinge connector secured with the sign face that may be connected to the adapter in a hinged manner without fasteners. The hinge connector supports the sign face and cooperates with the adapter to allow the sign face to pivot on the sign box.