Load-bearing structures are designed to support and transfer loads, such as weight from the roof, walls, and floors, to the ground. These structures are essential in construction, as they ensure stability and safety. Common materials used in load-bearing structures include concrete, steel, and wood. In a load-bearing wall, for example, the wall itself carries the weight of the building above it. This contrasts with non-load-bearing walls, which only serve as partitions. Understanding the principles of load-bearing structures is crucial for architects and engineers to create safe and durable buildings.