Frames of wood or metal enclosing part (or all) of a window sash May be opened by means of hinges affixed to the vertical edges
An operating window that is hinged to open on either the left or right vertical jamb Marvin produces these windows in either wood or aluminum clad exteriors under the Casemaster trade name Marvin's Integrity product line also features a casement built from their ultrex fiberglass composite material
A window that hinges on the side, locks on the side, and projects out vertically when in an open position
Window sash which swings open on side hinges; in-swinging are French in origin while out-swinging are from England