4-20FT Sliding Barn Wood Door Hardware Closet Track Kit. (hardware only, Door is not include). Item: 4-20FT sliding barn door hardware. (Hardware only, door is not included). Color: Frosted Black. Maximum Door Weight Capacity:330lbs. Wheel Diameter: About 5.9. Door Thickness: From 1.18″ To 1.96″ (30mm-50mm). The top of the Doors to the ceiling : Min distance is 8.7. Suitable for the bedroom, study room, living room, kitchen etc. How to Choose Track Lenghth. Single Door Min Track Size= 2 × Single Door panel Width (EX: If your door panel width is 3ft, Min track size is 6ft). Double Door Min Track Size= 4 × Single Door panel Width. (EX: If your single door panel width is 3ft, Min track size is 12ft). Door Stops: 2pcs. Door Stops: 4pcs. Anti-jump Disk: 2pc. Anti-jump Disk: 4pcs. Floor Guide/wrench: 1pc. Floor Guide/wrench: 2pc. Installation manual: 1pc. We are responsible for it. Any questions please tell us, Our customer service will help you within 24 hours.