Applications for aluminum square tubing include gates and fencing, gym equipment, awnings, and exterior and interior moldings. It is also used for lawn furniture, luggage racks, protective barriers and support columns.
Because aluminum square tubing connects easily with other pieces, it is often used in frames, racks and shelves. It is both strong and lightweight, making it a good option for truck trailers and equipment, ladders and scaffolding. Objects that are exposed to the elements, such as exterior furniture, awning supports, gates and trench covers, are often made with aluminum square tubing because it resists rust. This type of tubing may also be called box tubing or structural tubing.