Aluminium Square Tube, also referred to as ' Box Section' is supplied in grade 6082 T6. A structural alloy with medium strength & high corrosion resistance, ideal for outside applications. The square shape is easily fabricated into box or cubic structures & is an ideal component in rack building or windows frames. Other uses for aluminium square tube include: Doors frames Furniture making Stands Shop fittings Stairs, balustrades, rails & posts