Some websites that sell hardware for sliding doors include Richelieu.com, StanleyHardware.com and RealSlidingHardware.com. Richelieu sells sliding door hardware for interior commercial and residential sliding doors, contemporary and rustic barn doors, and pocket doors. It also offers a physical catalog and a product index containing home, office and workshop hardware.
Stanley Hardware, in addition to sliding door parts, accessories and hangers, sells fasteners, hangers, tools, security hardware and organizational supplies. The site offers a directory of technical documents and literature.
Real Sliding Hardware specializes in barn doors and barn door hardware. Its site has an image gallery, product catalog, information on choosing a barn door, technical information and a blog.