What is the Bar Between Double Doors Called?

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 is one main type of panic bar that works with them: surface-mounted rim panic exit devices. 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 with the strike directly on the mullion itself.

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, surface-mounted rim exit device 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

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.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.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.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 is one main type of panic bar that works with them: surface-mounted rim panic exit devices. 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 with the strike directly on the mullion itself.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, surface-mounted rim exit device 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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Doorway

A doorway is one of the easiest parts of a door to see. It is the opening that you walk through to enter a home or go from one room to another.

Door Frame

A door frame is what supports the door and consists of the head, jamb and sill. It is commonly made from wood, aluminum or steel.the frame and sits flat against the floor.

Head or Door Head

The door head is a horizontal section of the door frame that is located at the very top.

Door Panel

The door panel is the part of the door that swings to open and close. When you think of a door, this is typically what you would imagine.

Jamb

A door jamb is the part of the frame that runs vertically up the side of the door.

Sill

A sill of a door is at the bottom of the frame and sits flat against the floor.

Threshold

A threshold covers the entry door sill and provides a protective element. The threshold helps keep wind and water out of your home with a slight slope towards the outside.

Rail

Rails are the horizontal sections on a door panel. They are typically a decorative element and can be used to divide your door into sections.

Stile

Stiles are vertical sections located on the outside edge of both sides of the door. The lock, latches and hinges are all located on the stiles.

Hinge

A hinge is a piece of hardware that allows the door panel to swing in and out. Several types of hinges are used on doors, such as barrel hinges, pivot hinges and concealed hinges.

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Mullion

A mullion, sometimes referred to as a mull, is where two units are joined together. With entry doors, a mullion could appear between the door frame and sidelight or transom, or with additional windows to create a unique design.

Casing

Casing is a type of trim. It helps to hide the gap that commonly occurs between the door frame and the wall. It is a decorative element used to create architectural interest.

Brickmould

Brickmould is a type of trim that is applied to the exterior of the home and helps to hide the gap between the door frame and the wall. Brickmould can be used in all applications, regardless of the exterior material.

Weatherstripping

Weatherstripping is a flexible material that is located between the door panel and frame. Along with the threshold, weatherstripping helps keep your home comfortable and protected from bugs, wind and water.

Door Sweep

The door sweep, along with the threshold and weatherstripping, helps to seal the gap and keep out wind, rain and other elements. It is located at the very bottom and lies flat against the threshold.

In-Swing or Out-Swing Door

In-swing doors open into the room and, when you are standing inside your home, are pulled towards you when opening. Out-swing doors open towards the exterior and, when you are standing inside your home, are pushed away from your body when opening.

Astragal

If your front door design includes double doors, an astragal is the vertical piece that runs between the two panels.

Glazing or Glass

Glazing, also known as glass in a front door, is the window inside of a door. It allows in natural light and can help brighten a doorway. The glass in a front door is typically two panes of glass.

Front Door Sidelights

Sidelights are fixed windows that are attached to the side of an entry door. They are typically tall and narrow and help add architectural interest to the front of your home and natural light to your entryway.

Transoms

A transom is a fixed glass window installed above the door and sidelights. They allow in plenty of natural light and help to brighten your entry.

Grilles

Grilles are a decorative element that create the look of divided lites. Grilles can be located between panes of insulating glass, commonly called grilles-between-the-glass, or on the outside of the glass. They help to add design interest and customize the look of your front door.

Dentil Shelf

A dentil shelf is a small shelf typically located under a pane of glass on a door. It is a decorative element that is a hallmark of a craftsman front door.

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