This listing is for our ERW (Electric Resistance Welded) Square/rectangular steel tube and pipe ERW square steel tube is produced from steel strip and is typically used in furniture, display stands, shop fittings, clothes rails, storage/racking and general steel fabrications. The steel tube is continuously seam welded to produce a clean weld running the full length and is of good structural integrity, this does mean that the weld bead projects slightly into the inside diameter of the tube.Please select your required Size and Length of Tube from the drop down menu above