Right Size For Door: 10 FT sliding barn door hardware kit can up to 330lbs load capacity. The track length should be twice the door's width. Therefore, the maximum width of the door is 5 FT/152 cm, and the suitable door thickness is 1.37-1.77""/35-45 mm. At the same time, it is better to leave 6""/15 cm clearance above the door.
Hardware only. 
Doors not included 
Heavy Carbon Steel: Double barn door hardware kit is a great design to slide your doors more smooth. The help of the kit can also be labor-saving and space-saving. It constructs with 0.24""/6 mm carbon steel and coated in a black power to nicely stay rust-free, abrasion-proof for long-term service.
Easily Sliding Detail: The J-shape hangers are made of upgraded nylon, and a whole track splicing expansion connects the heavy carbon steel track. Details as above can reduce friction between rollers and the track. Sliding smoothly and quietly can be available.
Practical Designs: 4 x anti-jumps go on the top of the door to keep the door not lifted off the track. 4 x floor guides fix on the floor to ensure the balance of the door. 4 x door stoppers install on the two sides of the track to set the sliding door hardware at any position. They ensure you open and close your door securely.
Setup & Versatile: The sliding barn door kit is solid, one-piece construction. All the necessary hardware is included to simplify the installation steps. It is suitable for all kinds of indoor and outdoor spaces: bedroom, dressing room, kitchen, barns, garages, and stables, etc.
Material: Carbon Steel
Load Capacity: 150 kg/330 lbs
Track length: 10 FT/305 cm
Hangers Diameter:2.4 x 1.57 x 11.8"/6 x 4 x 30 cm
Max Door Width: 5 FT/152 cm
Fit Door Thickness: 1.37-1.77"/35-45 mm
Color: Black
Item Weight:24 lbs/11 kg
Package Content
4 x Hangers
3 x Tracks
7 x Rail Supports
7 x M8 * 90 Screws
8 x M10 * 60 Screws
4 x Door Stoppers
4 x Anti jumpers
4 x Floor guides
 The doors are not included. This is a hardware  kit