A cantilever is a structural element that is anchored at one end and extends horizontally into space without external support at the other end. This design allows it to support loads along its length while only being fixed at one point. Cantilevers are commonly used in construction and engineering, such as in bridges, balconies, overhangs, and beams in buildings. The key advantage of a cantilever structure is its ability to support weight and provide stability without requiring additional supports, which can create open, unobstructed spaces beneath. Materials like steel, concrete, or wood are typically used in cantilever designs, depending on the load requirements and the application. Cantilevers are engineered to resist bending and shear forces, making them a vital component in architectural and structural projects where extension without visible support is needed.