Abstract: By providing a door wherein the components forming a multi-panel unit assembly, a support & alignment mechanism, an automatic actuating panel action locking and release mechanism, sliding mechanism and hinges, a dual action door assembly is achieved which assures component engagement that allows the door assembly to operate within controlled confines combining first a sliding action and then a swing action to open the door for full unobstructed access of a range of doorway widths from narrow to ultra-wide while overcoming the support problems, full open access problems and wide swing radii problems consistent with conventional doors.