Square Tube

Steel House stocks an extensive list of structural square and rectangular tube at a variety of sizes and lengths.  All our steel square/rectangular tube is available in stock lengths or cut to length. Email us about our fabricated steel columns with welded base plate, cap plates and gusset plates, pre-drilled and primed; perfect for your next structural project.

Steel Tube Specs: ASTM A-500, A513 Grade B; Structural Grade.

Available Finishes: Stainless, Aluminum, Galvanized and Hot Rolled Steel

  • Uses: Residential and commercial structural columns, handrails/guardrails, general fabrication, dumpster gate framing, etc.
  • Know the numbers: Square tube and rectangular tube is available in thickness as small as 18ga. and progressively gets larger to as thick as 1/2”.  The higher the gauge, the thinner the material.
  • NOTE: All our structural steel tube is a welded structural grade tubing, the most commonly used square tube in the steel industry.

Available Stock Sizes: 24ft and 48ft. lengths or custom cut to any size.