Panic bar code basics for businesses.
When panic hardware is required, the types of exit devices, fire-rated doors, and what never belongs on an exit door.
By Lock Raven, Maryland Locksmith License #737 · · 5 min read
What is panic hardware?
A panic bar, crash bar, or exit device unlatches the door when its bar or touchpad is pushed, so people can leave without turning a knob or knowing how a lock works. From outside, the door can stay locked, opened with a key or trim, or released by access control.
When is it required?
The model codes most jurisdictions adopt, including the International Building Code and NFPA 101 Life Safety Code, require panic or fire exit hardware on certain exit doors, typically in assembly spaces such as restaurants and venues and in educational buildings once the occupant load passes a threshold, and in high-hazard areas. Exact requirements depend on the building's occupancy and the codes adopted locally. Your fire marshal or code official has the final word.
What types are there?
| Type | How it latches | Typical use |
|---|---|---|
| Rim | Latch on the edge of the door | Single doors, the most common |
| Surface vertical rod | Rods latch at the top and bottom | Double doors without a center post |
| Concealed vertical rod | Rods hidden inside the door | Double doors where looks matter |
| Mortise | Latch inside a mortise pocket | Heavy-use doors |
What never belongs on an exit door?
Chains, padlocks, and extra slide bolts that block a required exit are a serious hazard. If staff keep adding them to stop doors being used, an alarmed exit device or delayed egress hardware, where codes allow it, solves the problem safely.
Need a hand with this? Talk to a licensed locksmith.
Lock Raven serves Baltimore City and Baltimore, Anne Arundel, Harford, Carroll, and Howard counties. Every job is priced before work starts.