What is the Bar Between Double Doors Called?

The Answer is a Mullion

When it comes to double doors, the metal bar running vertically between them is called a mullion. This term is commonly used in the door industry, and it refers to a vertical or horizontal element that separates and supports panes of glass, as well as sections of metal or wood.

What is a Mullion?

A mullion is an essential component of commercial door hardware that provides structural support for large glass or metal panels. It is usually made of aluminum or steel and is designed to fit between the two doors, creating a seal to prevent air and water infiltration.The primary function of a mullion is to provide structural stability and support to the doors. It helps to distribute the weight of the doors evenly and ensures that they remain in their proper position. In addition, mullions also provide a visual break between the two doors, creating a more aesthetically pleasing appearance.

When and How to Use a Mullion?

Mullions are used in situations where large doors need to be divided into smaller sections. They are commonly found in commercial settings such as shopping malls, airports, and office buildings. Mullions are also used in residential settings for patio doors or large windows.When installing a mullion, it is important to ensure that it is properly aligned and securely fastened to the doors. This will ensure that the doors remain stable and do not sag or bow over time. It is also essential to ensure that the mullion is properly sealed to prevent air and water infiltration.

Types of Panic Bars that Work with Mullions

Panic bars, also known as exit devices, are an essential component of commercial door hardware. They are designed to provide a quick and easy exit in case of an emergency. When it comes to mullions, there are two main types of panic bars that work with them: surface-mounted and concealed.Surface-mounted panic bars are installed on the surface of the door and are visible from the outside. They are the most common type of panic bar and are available in a range of styles and finishes to suit any application. Surface-mounted panic bars work well with mullions and can be installed directly on the mullion itself.Concealed panic bars are installed within the door and are not visible from the outside. They are designed to provide a more discreet appearance and are commonly used in high-end commercial applications. Concealed panic bars can also be used with mullions, but special mounting hardware is required to install them properly.

Conclusion

Mullions are an essential component of commercial door hardware, providing structural support for large glass or metal panels. They are commonly used in situations where large doors need to be divided into smaller sections, such as in shopping malls, airports, and office buildings. When it comes to panic bars, both surface-mounted and concealed options can be used with mullions, providing a quick and easy exit in case of an emergency. It is important to ensure that mullions are properly installed and sealed to prevent air and water infiltration, as well as to ensure that panic bars are installed correctly to ensure their proper functioning.
Commercial door panic bars and exit device hardware are available at www.autodoorandhardware.com.

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