A pocket door mounting system allows a pocket door to be easily leveled or adjusted after installation in a door opening. The system is installed in a level position in the area of a structural header. At each end of the system is a standard bracket or brackets which attach to vertical framing members on either side of the door opening. At one end of the system is an adjustment assembly having a vertically oriented adjustment screw. Raising or lowering the adjustment screw adjusts the pitch of the system relative to the door opening.