One of 40mm square extrusions, it is also one of the most commonly used profiles. Its overall dimension is 40mm x 40mm. It can be used as upright and beam of the stand, it also can be called as post or pillar. Its material is 6063 aluminum. The wall thickness of profile is 2.1mm, it has eight system grooves, the width of each groove is 4.3mm, the depth of groove is 7.5mm, and the weight per meter is 1.509kg. The maximum length that can be produced is 6 meters. The product can be processed according to customer requirements, and can be reused for many times. A variety of surface treatment methods are available.