Tubular structures are engineering designs characterized by their hollow, cylindrical shape. These structures are often used in construction and manufacturing due to their strength-to-weight ratio, making them efficient for various applications. Common materials for tubular structures include steel, aluminum, and plastic, which provide durability and flexibility. In architecture, tubular structures can be seen in bridges, towers, and frameworks. Their design allows for the distribution of loads evenly, enhancing stability. Additionally, tubular structures are often used in furniture and automotive components, showcasing their versatility across different industries.