CCJH 15FT Single Sliding Barn Door Hardware Kit Black Carbon Steel Hanger Flat Track System for Closet Kitchen 1 Door 90 inch Wide, Smoothly and Quietly 4.3" T Style RollerBrand CCJH Color 4. 33" T Wheel Material Metal Style Modern Assembly Required Yes Door Weight Capacity 330lb, 15FT single barn door hardware kit fits a 1 3 16" 2" thick and 90" wide door, The clearance above the top of the door needs min. 6. 7", 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