What is a girder in construction?

A girder is a horizontal beam that supports the weight of floors and roofs in a building or structure. Girders are typically made of steel, concrete, or wood, and are used to provide structural support and stability. They are often used in combination with columns to create a framework for a building. Girders can vary in size and shape depending on the specific requirements of the structure they are supporting. They are an essential component of building construction and are carefully designed to ensure they can safely carry the loads placed upon them.