Heavy-Duty Weight Capacity：This barn door hardware kit Supports up to 500 lbs, ideal for large sliding doors, barn doors, or patio gates. Reinforced brackets and thickened alloy rollers prevent sagging and ensure smooth operation. Product Size：Track length 72-3/64 ", maximum load capacity 500 pounds, suitable for door panel thickness 1-3/8" [35mm] to 1-3/4 "[45mm].Maximum door width: 36" Silent & Smooth Gliding System：Heavy duty outdoor barn door hardware kit Equipped with high-precision nylon bearings and noise-reducing technology, offering whisper-quiet movement even under heavy loads. Perfect for residential and commercial spaces. Easy Installation & Universal Fit:Includes adjustable mounting brackets and pre-drilled holes for quick setup. Compatible with standard door sizes (max width 36”) and works on concrete, wood, or metal surfaces. Weatherproof & Low Maintenance: Rust-resistant design requires minimal upkeep. Wipe clean with a damp cloth, and enjoy hassle-free performance for years. Package Included: 2 x 48" track, 2 × Track end caps, 5 × Track brackets, 2 × Hangers with door strap,1 × Galvanized steel floor guide, 2 x Stoppers & Step-by-step instructions. (Door panel and handle are NOT included.) Professional service: If you encounter any problems during use, please feel free to contact us. We provide the most professional 24-hour service. Black Box Rail Exterior Sliding Barn Door Hardware