All our aluminum metal Fire Lane signs are ideal for outdoors. 63 - 80 mil thick aluminum signs are available in three grades of reflectivity and each grade comes with different outdoor life. Engineer Grade, High Intensity grade, and Diamond grade reflective signs offer an outdoor life of at least 7, 10, and 12 years, respectively. These signs are pre-drilled and you can mount them on any wall, sign post, or fence outside your building. However, if there’s no mounting surface available, consider using our BigBoss A-Frame Portable Fire lane Sign. Some of our designs are also available as LawnBoss signs (sign comes with a 3 feet stake having a tapered end) and FloorBoss plastic folding signs which are also a great option for outdoors.