Structural materials are the essential building blocks used in construction and engineering. They provide the strength and stability needed for structures like buildings, bridges, and roads. Common examples include steel, concrete, and wood, each chosen for their unique properties. For instance, steel is known for its high tensile strength, while concrete is favored for its durability and ability to withstand compression. These materials are carefully selected based on the specific requirements of a project. Factors such as weight, cost, and environmental impact play a crucial role in the decision-making process. Understanding the characteristics of different structural materials helps engineers and architects create safe and efficient designs.