Upgrade your space with this sliding barn door hardware kit designed for single barn doors 36" to 40" wide and 1-3/8" to 1-3/4" thick. Built from heavy-duty carbon steel, it supports up to 330 lbs for reliable long-term performance. High-density thermoplastic wheels and quality bearings help deliver smooth, quiet sliding. The black powder-coated finish resists rust, moisture, and wear for a clean, durable look. Ideal for bedrooms, living rooms, bathrooms, dining areas, and other interior or outdoor applications.