See the below image for the Oriel window diagram. Oriel windows in Kłodzko, Poland. An oriel window is a form of bay window which protrudes from the main wall of a building but does not reach to the ground. Supported by corbels, brackets, or similar cantilevers, an oriel window is most commonly found projecting from an upper floor but is also sometimes used on the ground floor.
Glass oriel windows make a great feature in internal rooms where external windows are far away, or too small to produce enough natural light. Glass roofs might also be beneficial if side windows are restricted due to neighbouring properties. AT GLASS STRUCTURES LIMITED, WE CREATE A LIVING SPACE TO SUIT EVERY SEASON.
: a large bay window projecting from a wall and supported by a corbel or bracket. — called also oriel.