Door & Half Fire Doors

What is a door and a half fire door?

A door and half fire door, is a fire rated door set made up of a standard or larger fire door with a smaller sized door to fill the remainder of the aperture in the frame. A door and a half set maybe chosen over a double door or even a large single door for a variety of reasons. These reasons may include that they do not need to use the entire opening all of the time, or having double doors maybe cumbersome to navigate when moving wheelchairs or wheeled beds. A door and a half set mean that one door, usually the larger one, can be used regularly just like a normal door, leaving the smaller leaf to be opened as and when it required to move wider objects around a building.

What sizes do a door and half leaf cover?

Our online fire door configurator provides flexible sizing for your requirements which can be manually entered up to a maximum height and width. These can vary based on whether you require the door set with or without a frame.

• Maximum dimensions for doors only
• Height - 2440mm
• Width - 2440mm
• Maximum dimensions for door and frame (structural opening)
• Height - 2490mm
• Width - 2522mm
• Maximum leaf size (Main door width dimension)
• 1220mm

If you are looking to purchase a fire door and frame set, it is key to remember to measure your wall thickness as well. Our online configurator allows for a wall thickness of up to 144mm. The configurator will calculate the size of the half leaf based on the opening minus the main leaf size. Here is a list of common main door sizes:

• 610mm
• 626mm
• 686mm
• 726mm
• 762mm
• 826mm
• 838mm
• 926mm