Rectangular tube has a high strength-to-weight ratio, excellent compression support characteristics and excellent torsional resistance. It can be readily bent, formed, punched and drilled. Moreover, it is very durable, and has a light weight. It is suitable for small and medium constructions or work that has a limited place. Mostly, it will be used for building poles, scaffolding, doors, shelters, and buildings.Additionally, it can be used for general works such as extension of roof’s structure, balcony battens, handrails, and furniture.