What a Panic Bar Actually Is — and the Terminology Behind It
The term 'panic bar' is widely used by building owners and facility managers, but the hardware industry uses several overlapping terms that refer to related — yet distinct — products. 'Exit device' is the broadest category, covering any mechanism that allows egress by pushing a horizontal bar or touch pad. 'Crash bar' and 'push bar' are common informal names for the same concept. 'Panic hardware' specifically refers to devices listed under UL 305 and tested to open under a load of 15 lbs or less, which is the threshold required for assembly occupancies where crowds may surge toward a door in an emergency. Understanding these distinctions matters when you are specifying hardware, pulling a permit, or simply describing what broke to a technician on the phone. When you call 847-443-3956, our team will ask the right questions to identify exactly which device type is on your door — or which one your door needs — before we arrive.
A particularly important subset of exit devices is the mortise lock exit device, sometimes called a panic bar with mortise lock. Unlike a rim device that mounts entirely on the surface of the door, a mortise lock exit device integrates a full mortise lock body into the door's edge, combining the security of a heavy-duty deadbolt and latch with the one-motion egress of a panic bar. Brands like Von Duprin manufacture the Von Duprin mortise lock exit device series, which is widely specified for high-security commercial applications. These units require precise door preparation — a correctly sized mortise pocket and aligned strike — making professional installation essential.





