WINSOON is the leading manufacturer of sliding barn door hardware. Craftsmanship, excellence and innovation are our primary pursuits. We enjoy the working with raw materials to make them into something extraordinary. Trustful quality and workmanship is what you can expect when you choose WINSOON. We lead the way in sliding barn door hardware and we invite you to create something unique. Smooth rolling, balanced hangers ensure that all wheels carry weight evenly for the smoothest operation. This 13 ft. single track bypass compared with the previous bypass products, it saves more space and requires less distance from the top of the door to the ceiling. At least 6 in. of space can be installed in your home. Because the wheels are staggered, this will result in an overlap size of about 8 in. - 12 in. If you are installing two 78 in. doors, then your door opening length should be perfect at 144 in. Color: Black.