This house style was used from the 1900's until the 1930's, and is recognized by its square appearance and often hipped, pyramidal roof. Front dormers are often used. It is almost always one and one-half or two stories in height, and interior spaces are often arranged into four main, square or nearly square, spaces. A full front porch is most common in these buildings. Detailing on the house may be from any of the styles common in the early twentieth century. Sidelights and transoms are often used on an American Four Square, and these may be of leaded, stained or beveled glass. Double hung windows are used, and they may have a patterned upper sash or may be in a one over one configuration.