National Hardware, N700-006 72-Inch Interior Sliding Barn Door One-Piece Design Kit, Brushed Gold with Soft Close. Adds custom design and privacy to a door opening. Full track design for single doors up to 200 lbs. With soft close installed, 400 lbs. Soft close kit included with kit. Features a metal wheel design to improve door functionality. Includes all mounting hardware and components to hang a barn door. Fits openings up to 36. For 1 3/8″ and 1 3/4″ thick single doors.