Push Bars and Panic Hardware for Commercial Safety

Picture a crowded restaurant when the fire alarm goes off. Nobody stops to read the door or fumble with a knob. They push, and the door needs to open. A push bar is built for exactly that moment.

You’ve probably heard them called panic bars, crash bars, or exit devices. In the industry, the official term is panic hardware. They’re all the same basic idea: a bar across the inside of the door that unlatches it when someone pushes against it. Below we cover how they work, how fire-rated versions differ, the main types, and the signs that yours needs attention.

How a Push Bar Works

The bar (or a flat touchpad, on some models) connects to a latch on the door. Pressing anywhere along the active part of the bar pulls that latch back, and the door swings open. Once the door closes, the latch catches again on its own.

What happens on the outside of the door depends on how it’s used. Some doors have nothing on the outside at all, which makes them exit-only. Others have a pull handle with a key cylinder, or a lever that can be locked and unlocked with a key, so staff can come and go while the door stays secure from the street.

Many push bars also have a feature called dogging. With a small key or hex wrench, someone can hold the latch in its retracted position so the door works like a simple push/pull door during business hours. At closing time, the dogging gets released, and the latch goes back to work. A lot of business owners use dogging every day without ever hearing the name.

Panic Hardware vs. Fire Exit Hardware

This is the distinction that matters most, and it’s the one most often gotten wrong.

Standard panic hardware is made for exit doors that aren’t fire-rated. Fire exit hardware has been tested and listed for both purposes, so people can get out quickly, and it holds up on a fire-rated door assembly. A regular panic bar can’t go on a fire door.

Fire exit hardware also doesn’t have mechanical dogging. A fire door has to stay latched during a fire to keep smoke and flames from spreading, so the latch can’t be held back with a key. Some fire-rated devices can be held open electrically, as long as they relatch automatically when the fire alarm sounds.

Fire doors usually carry a label on the edge or the hinge side of the frame. If yours says it needs fire exit hardware, any replacement has to be listed for that use.

Types of Exit Devices

Rim exit devices are the most common type and the simplest to maintain. The latch sits on the end of the device and catches a strike mounted on the frame. They’re mainly used on single doors.

Mortise exit devices work with a lock body that sits inside a pocket in the edge of the door. They take more work to install, but they’re very durable. You’ll often find them in schools, hospitals, and older commercial buildings.

Vertical rod exit devices use rods that run to the top of the door, and often the bottom too, where they latch into the frame and the floor. Their main job is on double doors with no post between them. They come in surface-mounted versions and concealed versions, where the rods are hidden inside the door.

For double doors, another option is a pair of rim devices with a removable post in the middle. It’s a very secure setup, and the doors don’t have to line up as precisely as they do with vertical rods.

Push bars also come in two styles. A crossbar is the classic tube across the door. A touchpad is a flatter bar with a pad you press. Touchpads are more common on newer doors, but the choice sometimes comes down to the width of the door’s frame.

When Are Push Bars Required?

Whether you need panic hardware mostly comes down to how many people your building holds. A packed restaurant on a Friday night probably needs it. A three-person office probably doesn’t. Schools almost always do. Some electrical rooms and spaces that store hazardous materials are covered too, which catches a lot of owners off guard.

The exact rules depend on how your building is classified, how many people it holds, and which door is being used as an exit. Your local fire marshal makes the final call. If you’re opening a new business, changing how a space is used, or getting ready for an inspection, it’s worth having someone look at your exit doors before the fire marshal does.

Push Bars and Security

Some owners worry that a push bar makes a door easy to get through from the outside. A properly set up one doesn’t. Exit-only doors with no outside hardware can’t be opened from the outside at all, and keyed trim keeps the door locked for everyone except people with a key.

Most of the trouble we see happens at the back door. Someone props it open with a trash can during a delivery, or employees start using it to slip out for a smoke break. An alarmed exit device helps with that. Push the bar and it sounds off, so people quickly learn to use the front door instead. And if there’s ever a real emergency, nobody is stopped from getting out.

Push bar doors can also connect to an access control system. One common way is a rim electric strike that releases the latch when someone badges in from the outside. Another is electric latch retraction, where a motor inside the device pulls the latch back on command. That makes it possible to unlock the door on a schedule or hold it open during business hours from a control panel. Our post on electric strikes covers how those work with exit devices.

Signs Your Push Bar Needs Repair or Replacement

When a business owner calls us about a push bar, the problem usually sounds something like this: “It’s been getting harder to push.” “The bar stays stuck down.” “The door closes, but sometimes it doesn’t lock.” With double doors, we hear “the top doesn’t catch anymore” a lot, and that one usually comes down to a bent bottom rod or a top latch that’s slipped out of line.

Vertical rod devices especially need adjustment from time to time to keep latching properly. Other things to watch for are a bar that feels loose on the door, dogging that won’t hold, a key that no longer works the outside trim, and any visible damage to the bar or latch.

A door that doesn’t latch is a security problem. A door that doesn’t open easily is a safety problem. Neither one should wait. Often an adjustment or replacement part fixes it, but older or badly damaged devices are sometimes better off replaced.

Frequently Asked Questions

Does my business need panic hardware?

Maybe. It mostly comes down to how many people your building is set up to hold. A busy restaurant or a church usually needs it. A small office often doesn’t. The fire marshal decides for sure, but we can come check your doors and give you a good idea before they do.

Can a door with a push bar be locked from the outside?
Yes. Outside trim with a key cylinder or lockable lever keeps the door secure from the outside while still letting people inside push their way out.

What is dogging?
It’s a way of holding the latch back so the door can be pushed or pulled open without latching. It’s handy during business hours, but it isn’t allowed on fire exit hardware.

Can I put a regular push bar on a fire door?
No. Fire doors need fire exit hardware that’s listed for use on fire-rated doors.

Can push bars work with key cards?
Yes. A push bar door can be tied into access control with an electric strike or electric latch retraction, so authorized people can badge in from outside.

Why won’t my double doors latch?
On doors with vertical rod devices, this usually means the rods or latches need adjusting, or a bottom rod has been bent. The door itself may also be sagging or rubbing.

Push Bar Installation and Repair in New Braunfels

Between the restaurants, dance halls, wedding venues, churches, and schools in and around New Braunfels, a lot of local buildings fall under panic hardware requirements. The Key Depot has been installing and repairing commercial door hardware in the Texas Hill Country since 1989. We handle push bars, vertical rod devices, door closers, and the access control equipment that ties into them.

Get Your Exit Doors Checked

Got a push bar that’s acting up, or not sure your exits would pass an inspection? Give us a call. We’ll come out, take a look, and tell you straight what it needs.