The hardware for the door frame is made of galvanized steel, which is coated with zinc to prevent rusting and corrosion. The hardware includes hinges, top and bottom fixtures, rollers, and an inside lock. The hinges are 14 gauge, while the top and bottom fixtures are 12 gauge. The rollers are made of nylon and have 10 ball bearings each, which allow them to glide smoothly along the tracks. The inside lock is a security feature that prevents the door from being opened from the outside. The hardware specifications may vary depending on the customer’s preference. For example, 11 gauge components and 3 inch steel rollers can be used if requested.