GRIDS: The Solution to Plain Windows and Patio Doors
Window panes with grids give your house today's popular look. In colonial days, the production of glass window panes was limited to smaller panes that could be packaged and shipped by horse in a satchel or box. Windows were divided into smaller sections known as divided lites.
The glass panes were held into place with wood mouldings known as muttons or also known as mullions. All of these window grids provide a look that we know as colonial window grids. Some people call them colonial windows. Thomas Jefferson's home is a classic featuring window grilles.
You might optionally select "Prairie Style" that was popularized by architect Frank Lloyd Wright. It's being used today by many manufacturers of new windows.
Most new homes feature residential window panes with a variety of “window panes” between the glass of dual pane insulated windows. Some new home builders also feature the patio door grids in their dual pane insulated patio doors.