CCJH 6.6FT/201CM Heavy Duty Sturdy Sliding Barn Door Hardware Kit -Smoothly and Quietly -Easy to Install Fit 36"-40 Wide Door Panel (Simple Shape Hanger)Door Weight Capacity 330lb, 5. 5FT single barn door hardware kit fits a 1 3 16" 2" thick and 33" 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,