- 1 inch square tubing dimensions. We can cut to any size to suit your application's needs. ORDER BY SPECIFYING THE NOMINAL PIPE SIZE AND SCHEDULE. ORDER BY SPECIFYING THE O. Metals Depot stocks hundreds of sizes of square tube at wholesale prices in ready to ship precut and mill lengths or you can order just what you need custom Cut to Size in any quantity. Square metal tube stock is used in both structural and architectural applications. we supply square steel tubing with different sizes for a wide variety of mechanical and structural. This specification covers cold-formed welded carbon steel hollow structural sections (HSS) for welded or bolted construction. 035" Wall 19 Ga. Steel tube is a common component in a wide range of fabrication and construction projects. Steel Square Tube is easy to fabricate and has a surface suitable for painting or plating. lzo ywcj g9w 5w x2vewty tpf0 dyo1i wwos lmxl9j e5vk