Stanley National N160-499 Galvanized Barn Door Guide Rail, 8' Barn door rail designed to engage the bottom lateral of TAB-LOC doors to hold door firmly in place and prevent wind damage to both door and building. Fastens to building using #6005 guide rail brackets. Also used with #6061 or #6062 continuous bottom guides. Includes pre-punched mounting holes to attach #6005 guide rail brackets. Features WeatherGuard protection