Product details:

Features: The Single Wheel Barn Door Hardware are made using premium carbon steel. So you can be assured that products are safe and reliable. High quality frosted black steel makes it heavier than other sliding barn door hardware but more strong and durable You need to have at least 8" of space between the top of the door to the ceiling to accommodate for the hardware. The maximum capacity of each rail is 200 pounds. Tracks above 10' have to be connected with smaller tracks.