The 1500SC Series Pocket Door Frame is designed to soft-open and soft-close heavy solid core doors weighing up to 165lbs. Smooth ball bearing hanger wheels combined with soft-closing door operation make the 1500SC one of the finest pocket door installations available. The 1500SC is designed to be quickly installed into prepared 2 x 4 timber frame stud walls or 4" steel framed stud walls when using the 1574PLBG 4" Steel Stud Adapter Kit.