Johnson Hardware Pocket Door Hardware is a versatile single track system designed primarily for on-the-job construction of pocket doors, but it can also be used in combination with itself or other Johnson series tracks for special sliding door installations. The aluminum track features convex rails and jump-proof 3-wheel hangers, ensuring smooth and reliable operation. Heavy gauge steel components are zinc plated to provide a quality appearance and durability. This heavy-duty commercial grade hardware is suitable for doors that are 1-3/8" or 1-3/4" thick and can support up to 125 pounds. The tricycle hangers add extra stability, making this hardware an excellent choice for both residential and commercial applications. Model Number: 100721DR