Careful fabrication and durable materials ensure this Richards-Wilcox box door track is a reliable option for your sliding door system. The formed steel with a nominal thickness of 1/16" is suitable for home, commercial or industrial use. This 12' track should be supported at 2' centres. Hanging barn doors? This Richards-Wilcox hardware is a solid choice. It's designed for use with bracket HH #52313-574.