The present invention relates generally to improvements in hanger devices for horizontally slidable doors, of the type known as pocket doors which are slidable into a wall portion to occupy an open position and more particularly to novel hanger structures for vertically adjusting the leading edge of such doors in order to plumb the door against the jamb. The embodiment of the invention disclosed herein comprises a first section or base adapted for attachment to the upper margin of a slidable door in the vicinity of the leading edge thereof, and a second section pivotally supported by the first section. Said second section is in the form of a pair of angularly disposed arms, the extremity of one arm supporting a guide roller, and the extremity of the other arm supporting an internally threaded member which accommodates a rotatable adjusting screw. By rotating this screw, the supported guide roller may be lowered or elevated for vertically adjusting the leading edge of the door, said door member being suspended in a given position by a hanger device in the vicinity of the trailing margin thereof.