Johnson Pocket Door frames are available to fit doors up to 5 ft. wide by 9 ft. high. The frame works with all doors 1 1/8 in. to 1 3/4 in. thick and weighing up to 125 lbs. Heavy-duty ball bearing hangars are available for sliding doors up to 200 lbs. The track's box shape and convex rails make it impossible for hangar wheels to jump off.