Part # 016.SET.42.18 Rack and Pinion Pocket Door System with 17.72" slides and 14.47" of travel. Accommodates doors that are 44" high x 24" wide and up to 30lb. Kits include all hardware needed for one door with inset hinges for doors up to 7/8" thick. Thick door inset hinges and overlay hinges are sold separately.