Designed much like a bay or bow window, a garden also extends from the wall to the exterior of the home. It is built in a square or rectangular shape at right angles. The two side lights often operate for added ventilation.

A gas other than air, usually argon or krypton, placed between window or skylight glazing panes to reduce the U-factor by suppressing conduction and convection.

The glass or plastic panes in a window, door or skylight.

A molding or stop around the inside of a window frame to hold the glass in place.

Optional horizontal or vertical lineals installed between the glass panes help to create the appearance of a divided window design.