The diagrams below will help you identify the type of window you need based on how the door opens. These window types apply to wood, vinyl, and metal windows.
The diagrams are shown as if you were standing OUTSIDE the window.
Single Hung Window
Typically, the top sash is fixed and the bottom sash slides up and down.
Double Hung Window
Both sashes slide up and down. The sashes may also tilt in to allow easy cleaning.
Also called a Picture Window, the sash does not move.
The sash of a casement window swings open from one side or the other.
One or both sashes slide horizontally within the frame.
Awning windows are hinged at the top and swing out at the bottom.
Hopper windows are hinged at the bottom and swing out at the top. They are used infrequently since the configuration allows rain to enter.