Although door knockers have been used through the years in many different times and eras, the most popular periods for door knocker were in the Colonial and Georgian times. Door knocker in these times were fancy cast iron creations usually painted black. These door knockers were status symbols and were designed to “dress up” the door and be an accessory that guests could admire. There are two specific style categories of door knockers. They are plain shaped door knockers with a ring (usually shaped like an oval) and head shaped door knockers of human, animals and angels (the lion's head being the most popular).
In the late 19th and 20th centuries door knockers were typically made of nickel and chrome plating. Today we are following the same trend.