Bow windows, much like bay windows, extend beyond the walls of your home to add extra room indoors. With a combination of four or more windows, they provide more design options - and more daylight and airflow - in limited wall space.

A combination of three windows joined at an angle, bay windows jut out beyond your walls to add space to your room. Because the windows face multiple directions and extend beyond your walls, they can let in more light and air than flat window types.

Commonly known as: Oriel window, Projection window, 90-degree angle window, 45-degree bay window, 30-degree bay window, box bay window, square bay window.