Window Frame Diagram Parts. The vertical side members of a window frame. The window frame is usually made out of wood or vinyl.
It is the moveable element of the. Head The head is the main horizontal part forming the top of the window frame. Stile The vertical edges of a casement.
It is sometimes called a window stool.
Vertical members of the window frame. Lower Sash A single assembly of stiles sides and rails top and bottom made into a frame for holding insulated glass. It is the moveable element of the. A plate of glass within a window frame.