A load-bearing beam is a structural element that supports weight and transfers loads from the roof, floors, or walls to vertical supports like columns or walls. These beams are essential in construction, ensuring that buildings can withstand various forces, including gravity and environmental factors. Typically made from materials such as wood, steel, or reinforced concrete, load-bearing beams come in various shapes and sizes. Their design is crucial for the overall stability of a structure, and they are often calculated using engineering principles to ensure safety and durability throughout the building's lifespan.