Bow windows is a term given when 4 or more windows match the same style and size while on an angle creating an outward projection or bow. This results in a window that is protruding outwards from the wall creating a curve. These windows have many options such as color and material. Performance rating will vary with these windows depending on the shape and style chosen.

Bow Windows are welcomed by homeowners and frequently called for by architects because of their grand, sweeping curves that turn a standard window opening into an appealing architectural enhancement. This type of window is used a lot in new construction as new buildings are going towards glass to allow more natural light into workspaces.