Abstract: A pre-hung door assembly kit enables the selective reversal of the hand of a pre-hung door mounted with hinges in a door frame for opening in one of right-hand and left-hand openings. The reversal is accomplished by rotating the door about a vertical axis and relocating vertical door jamb legs to maintain the correct juxtaposition of a previously prepared latching hardware location in the door with an appropriate previously prepared strike plate mortise in one of the door jamb legs so that factory precision is maintained with simplified field installation. Door stops are placed on the jamb legs so as to cover fasteners which secure the door frame in place in a building wall.