See the below image for the Parts of a window and window frame diagram. Window terminology can be divided into a few categories, such as the parts of the window frame, the glass itself, and the various safety and security features. Let’s start by taking a look at the parts of a window’s frame: Window Frame – A window frame holds and supports the entire window within the wall.
Inside the window frame is a piece of glass to keep the elements out and the cool/warm air in. This part of the window is located at the top of the frame and is horizontal. The vertical part of the window create the window frame’s sides.
Sill – The lowest part of the window frame. Head – The highest part of the window frame. Jamb – The vertical sides of the window frame. Apron – A piece of decorative trim installed beneath the railing or sill.