Product Overview: This listing is for the box rail barn door hardware only; door panels and handles are not included. The hardware is made of durable steel with galvanized finish, providing a sleek and modern look. Size and Compatibility: The 13FT exterior double sliding barn door kit consists of two 6.6FT tracks connected with a connector. It is designed for double doors with a total width of 79" (39" per door). The hardware can support a maximum door weight of 330 lbs, making it suitable for both interior and exterior doors. Installation and Fit: The outdoor sliding barn door kit is compatible with door panels that are 1-1/2" to 2" thick. The rollers have adjustable vertical lock nuts, and the system features a minimal gap between the door and the wall. Please note that the box track must be installed on a wooden board. Included Components: 13FT box track double barn door kit including:6.6FT box track*2;track connector*1 box track bracket*4; roller*4; stop*4; end cap*2; L guides*2; Additional Features: This heavy duty sliding barn door hardware set is designed for easy installation and provides a reliable solution for mounting barn doors. Additional Features: This hardware set is designed for easy installation and provides a reliable solution for mounting barn doors. The components are designed to ensure smooth and quiet operation, suitable for various door applications. Heavy duty exterior box rail double sliding barn door hardware 13ft