CCJH 8FT/244CM Single Sliding Barn Door Hardware Kit Black Carbon Steel Hanger Flat Track System for Closet Kitchen 1 Door 48 inch Wide, Smoothly and Quietly I Shape RollerDoor Weight Capacity 330lb, 8FT single barn door hardware kit fits a 1 3 16" 2" thick and 48" wide door, The clearance above the top of the door needs min. 6", The gap between door and wall is 5 8" based on 1 9 16" thick door. Widely Application Main material is steel, sturdy and stable roller rail kit, the bearings run very quietly and smoothly, Passed 150,000 times opening and closing test by doors of meeting room, living room, bedroom, kitchen,