Exit Devices/Panic Hardware A crash bar (also known as a panic bar, exit device, panic device, or a push bar) is a mechanism for unlatching a door, consisting of a spring-loaded metal bar fixed horizontally to the front of the door (the side of the door that opens outward) and hinged. It is operated by pushing on it, which unlatches and opens the door. Many building codes require them on all fire and emergency exits. They are so named because they can be operated by someone "crashing" into them; the alternate term "panic bar" implies a similar meaning. Many of these doors are one-way, and cannot be opened from the outside. To use this device on a two-way door, another type of handle must be mounted on the opposite side. There is quite a large variety of exit devices, from a host of vendors and here at Marshall's Locksmith we stock sell and service the top names in the industry. If you are unsure of your exact requirements, stop in and one and let one of our experienced locksmiths help you determine exactly what you need to meet building code requirements. Here is a partial list of the manufacturers we proudly sell and service. Arrow Von Duprin Detex Jackson Monarch