6FT Box Rail Exterior Barn Door Hardware Kit, Black Heavy Duty Sliding Barn Door Hardware, Wall Mount Barn Door HardwareDoors NOT Include. Heavy Structure: Made of Roll-formed galvanized steel with 5 track brackets, which can hold 450lbs door. 50000 cycles and corrosion resistance test passed, sturdy and durable. Suitable for door panel thickness: 1-3/8″ [35mm] to 1-3/4″ [45mm], can be used for both interior door and outside door (for single door use). Corrosion-resistant: Galvanized coating process is adopted on the surface to prevent corrosion. It can withstand the harsh outdoor environment and ensure long metallic luster and service life Sliding Smoothly: Precision formed steel hangers with double axis track, offer minimum friction and smooth operation. Track end caps decrease potential damage from hash weather. Easy to Install: The kit contains all the accessories required for installation, which can be quickly installed step by step according to our instructions. Package Included: Splice Track, 2 × Track end caps, 4 × Track brackets, 2 × Hangers with door strap, 1 × Galvanized steel floor guide, 2 x Stoppers & Step-by-step instructions. Only box rail barn door hardware for sale, door panel and handles are NOT included.