Door Closer Terms Explained

Backcheck

Backcheck is an action that offers resistance whenever the door is opened to between 70 and 90 degrees. It is designed to protect the door from being flung open and the building where the door opening if restricted. This used in conjunction with a door stop helps protct the walls, door and door frame. An example of this being useful is if the door is external. The back check will prevent a strong wind from blowing the door open and potentially damaging the door, hinges, door frame or wall.

Delayed Action

Delayed action slows the closing of the door from between 90 and 65 degrees. This is useful in care homes where people may need more time to go through the door.

Controlled Closing

This simply means that the rate at which the door can be closed at.

Latch Action

This allows for a little extra force for the last 10 degrees of the closing action. This allows the closer to over come a latch.

Slide Arm Application

This is used where people don’t want an arm that sticks out overhead. It consists of an arm that slides along a channel mounted over the door. 

Drop plate

This is necessary when the top rail of the door is to narrow to allow the fitting of the closer straight to it. The drop plate is first attached to the door and then the closer to the drop plate.