Lally columns are structural supports commonly used in buildings to bear loads from floors and roofs. Made from steel, these columns are often filled with concrete to enhance their strength and stability. They are typically cylindrical in shape and can be found in basements, parking garages, and other areas where additional support is needed. These columns are named after John Lally, an engineer who popularized their use in the early 20th century. Lally columns are essential in construction, as they help distribute weight evenly and prevent structural failure, ensuring the safety and integrity of a building.