Sliding Barn Door Hardware Kit For Single/Double Door. A djustable F loor Gu id e:? There is no need to punch holes on the floor, the shelf is made of carbon steel, the wheels are made of nylon, and there is an auxiliary wheel at the back, which can keep the distance between your door panel and the wall 1cm. Durable & Safe? High quality barn door hardware kit, Premium nylon roller wheel, Gcr15 roller bearing, High strength industrial grade track, Can easily hold 330bls 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. The traditional design elements make both rustic and modern environment look simple and elegant, save space and be practical. This accessory for sliding doors for wooden doors can be used in any interior space, storage room, utility room, large bathroom, dressing room, office, blinds, areas of great mobility etc. The install instruction is included and exact. Perfect design and stable accessories. Made of high quality steel material. Suitable for door thickness from 1 1/5 to 2 inch. All necessary accessories for the assembly of the sliding door hardware are included. The door is not included. Door Stops: Spring door stop, special design protect roller and reduce noise. Nylon material, protect the track from damage, silent rolling, no noise. Track width is 4cm, thickness is 6mm; if door thickness is 4cm, the distance from the door to wall about 1cm. Door Stops: Prevent roller from falling off the track, the spring can reduce A’s impulse, and the nylon head will not damage roller. Anti-jump Disk: Installed on the top of the door, prevent the door from popping out of the track during the movement. The material of the track is aluminum, which is very light. After special processing, the bearing capacity is extremely strong. Ial is carbon steel, adjustable screws, suitable door thickness from 3cm-5cm. Roller: 2 PCS (1 PAIR). Door Stopper: 2 PCS (1 PAIR). Track fixing accessories set. Accoding to rail holes. 1 hole need 1 set. Door Stopper: 4 PCS (2 PAIR). How to choose track length? Track’s length should be twice of door panel’s width (like your door width is 2FT/60.9cm, You will need 4FT/121cm hardware Kit).