Introduction Steel hollow section , known for their strength, versatility, and adaptability, serve as integral components in the construction and engineering industries. These specialized steel shapes, with their hollow structure, play a crucial role in modern architectural designs, infrastructure development, and various engineering applications. In this article, we delve into the characteristics, diverse types, and widespread applications of steel hollow sections. Understanding Steel Hollow Sections Steel hollow sections, also known as structural steel tubes or hollow structural sections (HSS), are steel profiles that feature a hollow, tubular cross-section. These sections are available in various shapes, including square, rectangular, circular, and other custom profiles. The unique geometry of hollow sections provides several advantages: Strength and Load-Bearing Capabilities : Steel hollow sections are engineered to efficiently bear heavy loads while maintaining structura