5-20FT Steel Sliding Barn Door Hardware Kit Track Closet. Roller Material:Carbon Steel Track Material: Aluminum Maximum load-bearing capacity of a single door. Suitable for door thickness. From 1 3/16″ to 2″3cm-5cm. Durable & Safe? High quality barn door hardware kit, Premium nylon roller wheel, Gcr15 roller bearing, High strength industrial grade track, Can easily hold 330lbs loads. Advantage?? Spring Door Stops, reduce noise and extend life? Pre- drilled rails, steel bearings? Wide Applicability? The rustic wooden sliding door fitting are very easily to decorate and suitable for bedroom, study room, dressing room, kitchen, closet, cabinet, farmland etc. Ply you within 24 hou. Step by step installation manual, professional after-sales customer service help you install easily. Super load-bearing capacity, inner nylon wheels, will not wear the track when rolling. Unique Spring Door Stops. He spring design door stopper can not only reduce sound during sliding your door, also extend the life of the kit. Ounted on the top of the door, prevent the door from popping out of the track during movement. The roller screws can be adjusted freely in any size within the door thickness from 1 3/16″ to 2″(3cm-5cm). Ackage includes: For Single Door. According to rail holes. 1 hole need 1 set. Roller Bolt: x4. Door Stopper: x2. T-shape Floor Guide: x1. Install Manual: x1. PLUS Adjustable Floor Guide. How to choose track length? Track’s length should be. Of door panel’s width. (like your door width is 2.5FT/76cm, You will need 5FT/152cm Kit for single door).