Aluminium Square Tube, also referred to as ' Box Section' is supplied in Grade 6060 T6. This is a medium strength material with high corrosion resistance & is known for its architectural properties. Our tube is ideal for external applications. The square shape is easily fabricated into box or cubic structures & is an ideal component in rack building or window frames. Common uses for aluminium square tube include: Doors frames Furniture making Stands Shop fittings Stairs, balustrades, rails & posts