Square tubes, also known as square steel tubes, are steel pipes with equal sides. They are rolled from strip steel through a process. In construction and renovation, steel pipes have become an indispensable material. Square tubes are also commonly used in renovation. However, it's important to understand the square tube size standards and familiarize yourself with the common size specifications to assist you in your selection.

Square tubes are as the name suggests, a tube with a square shape. Many types of materials can be used to form square tube structures. The usage and application of square tubes vary, but most are made primarily from steel pipes. They are formed by unpacking, flattening, rolling, and welding to create round tubes, which are then rolled into square tubes and cut to the desired length.