Business Security

Panic Bar Rules for Louisville Businesses

Last updated November 4, 2026 by the Louisville Car Key & Lockout editors. How we research.

You're signing a lease on a spot for a coffee shop, a church hall or a small gym, and the inspector's checklist says "panic hardware." A panic bar is the push bar across an exit door that opens the latch when someone leans on it. In Kentucky your business needs one when the room is a gathering space or school space that holds 50 or more people and the door has a lock or latch. Most offices and stores don't, unless they have one of those rooms inside.

What Counts as a Panic Bar

Code calls it panic hardware. It's a bar or a push pad across the door. Push it anywhere along the active part and the latch lets go. Fire exit hardware is the same idea, built and labeled for a fire rated door.

The point is simple. In a crowd, people don't stop to turn a knob. They push. A panic bar turns that push into an open door.

The Rule Kentucky Uses

Kentucky's building code is the 2018 Kentucky Building Code, built on the 2015 International Building Code. The state regulation that adopts it took effect in December 2024 (815 KAR 7:120).

Under that code, section 1010.1.10, a door that serves a Group A (assembly) or Group E (educational) room with an occupant load of 50 or more can't have any latch or lock other than panic hardware or fire exit hardware. Group H (high hazard) doors need it at any size (Kentucky Building Code, chapter 10).

Two things to notice. First, it's about the room the door serves, not the whole building. Second, it only kicks in if the door latches or locks. A plain push and pull door with no latch doesn't need it.

How to Tell if You Hit 50 People

Occupant load isn't how many people you expect. It's floor area divided by a number the code sets for the use. For the 2015 base code, Table 1004.1.2 gives 15 net square feet a person for tables and chairs, 7 for loose chairs only, and 5 for standing space. Business areas use 100 gross square feet a person and stores use 60 (Kentucky Building Code, chapter 10).

That math is a planning guide built from the table, not a ruling. The building official makes the final call. Ask Louisville Metro's building and fire inspectors before you buy hardware, since your exact use group and floor plan decide it.

The Fire Code Has Its Own Numbers

Existing buildings in Kentucky also answer to the state fire rules, the Kentucky Standards of Safety. They adopt NFPA 101, the Life Safety Code, 2018 edition, and they cover every building except one and two family homes (815 KAR 10:060).

NFPA 101 sets its own panic hardware triggers. A trade guide from Facilities Net lists 100 or more people for assembly, educational and day care spaces, and more than 5 for high hazard (Facilities Net, Codes to Know for Panic Hardware). When two codes apply, plan on meeting the stricter one.

Install Rules Inspectors Check

• Height. Door hardware has to sit 34 to 48 inches above the finished floor (section 1010.1.9.2).
• Length. The push part has to run at least half the width of the door (section 1010.1.10.1).
• Force. It can take no more than 15 pounds to release the latch (section 1010.1.10.1).
• Listing. Panic hardware has to be listed to UL 305. Fire exit hardware on a rated door has to be listed to UL 10C and UL 305 (section 1010.1.10.1).
• Balanced doors need the push pad type, not a bar (section 1010.1.10.2).

A cheap bar from a big box store may not carry the listing your door needs. Check the label before it goes on.

Security Without Breaking the Rules

Owners worry a panic bar means an open door. It doesn't. The bar opens from inside only. Outside, the door can stay locked, or take a key, a keypad or a card reader through outside trim. Federal workplace rules allow a panic bar that locks only from the outside on an exit door, and they say workers must be able to open an exit door from inside at all times without keys, tools or special knowledge (OSHA 29 CFR 1910.36).

What you can't do is chain it, padlock it or bar it at night while people are inside. OSHA says exit route doors must be free of any device or alarm that could restrict emergency use (OSHA 29 CFR 1910.36).

Not every business needs one. The code lets the main door of a Group A space of 300 or fewer people, and Groups B, F, M and S, use a key lock on the inside if it's plain to see when it's locked and the sign reads THIS DOOR TO REMAIN UNLOCKED WHEN THIS SPACE IS OCCUPIED in letters 1 inch high (section 1010.1.9.3).

Break-ins at gathering places are real here. Louisville Car Key & Lockout counted LMPD's open data for January 1 to October 11, 2026, and found 29 burglaries at restaurants and 23 at churches, synagogues, temples and mosques (Louisville Metro Open Data, LMPD). Lock the outside well, and keep the inside free.

The Rest of Your Questions

Can panic bars be installed on any door?

Most single swinging doors, yes, if the door and frame are in good shape and the hardware fits the door's style and fire rating. Glass storefront doors and pairs of doors may need special models.

Do all exterior doors need panic hardware?

No. It depends on the room the door serves, the occupant load and whether the door latches. Many offices and shops never need it.

Can a panic bar door be locked from the outside?

Yes. Outside trim with a key or a card reader is normal. The door just has to open from inside with one push.

Can I add an alarm to a panic bar?

An alarm that sounds is common on back exits. It can't slow or block the door. Ask the inspector before you add a delay lock, since those have their own rules.

Hiring someone to put hardware on your doors? Read the locksmith vetting guide first. Locked out of the building after hours? The 24 hour locksmith page covers late calls.