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Home > Door Hardware > Panic Bar Exit Devices > Panic Bar Exit Device Help Center > What is the Second Latch on a Panic Bar For?

What is the Second Latch on a Panic Bar For?

What is the Second Latch on a Panic Bar For?

Panic bars are a critical component of commercial building safety, providing occupants with an easy and quick way to exit a building during an emergency. However, panic bars would not be complete without the addition of a second latch, known as a deadlatch, which plays an important role in securing the building.

What is a Panic Bar?

A panic bar, also known as an exit device, is a type of door hardware that is designed to provide a quick and easy means of escape in the event of an emergency. Panic bars are typically installed on doors that are used as emergency exits, and are often found in commercial and public buildings.

The primary function of a panic bar is to allow people to exit a building quickly and easily, without the need for keys or special knowledge of how the door operates. When pressure is applied to the bar, the door is released and can be easily opened.

What is a Deadlatch?

A deadlatch is a type of locking mechanism that is commonly used in commercial door hardware, and is often found on doors that have panic bars installed. The deadlatch is a secondary locking mechanism that engages when the panic bar is depressed, ensuring that the door remains locked from the outside.

When a panic bar is pressed, the deadlatch engages, keeping the door locked from the outside. This is important because it prevents unauthorized entry into the building, even during an emergency.

Why is the Deadlatch Important?

The deadlatch is an important component of a panic bar because it ensures that the door remains locked from the outside during an emergency. This is particularly important in situations where the emergency has been caused by a threat from outside the building, such as an active shooter situation.

The deadlatch also helps to prevent unauthorized access to the building when it is not in use. This can be particularly important for businesses that store valuable assets or sensitive information, as it ensures that only authorized personnel are able to access the building.


While panic bars are a crucial component of emergency exit systems in commercial buildings, it is important to remember the role that the deadlatch plays in securing the building during an emergency. The addition of a deadlatch ensures that the door remains locked from the outside, preventing unauthorized access and keeping occupants safe.

At Automatic Door and Hardware, we offer a wide range of panic bars and commercial door hardware to suit any application. Contact us today to learn more about our products and services.

Commercial door panic bars and exit device hardware are available at www.autodoorandhardware.com.

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