Definition: In architecture, a baluster is a type of rail bracket that is used to secure an upright rail or other structure. These brackets are often used in buildings and structures as elevators, stairs, and other vertical forms of transportation. Balusters are typically made of wrought iron or steel, which have a flat plate on the top and a rounded edge on the bottom. The plates are connected by rivets or bolts to secure the rail to the upright frame. Balusters can be positioned in various ways