Rectangular Steel Tubing

Rectangular and Square Steel Tubing

Steel rectangular tubing and steel square tubing products are constructed from hot rolled metal coils that are hollowed out to create their tubular shape.  Rectangle steel tube and steel square tubing products are also low in cost and offer a greater strength-to-weight ratio than other types of shaped metal products. In addition, rectangle steel tubes and square steel tubings are regularly utilized throughout the world for their outstanding strength and rigidity.

Rectangular and Square Steel Tubing Applications

Steel rectangular tube and steel square tube products are specifically designed to add additional strength to a project while also concealing wires, pipes, and other types of moving parts. Since steel square and rectangle tubes can be easily welded, punched, formed, and drilled, they provide a lightweight alternative to other types of steel products, such as wide flange steel and I-beams. Some of the applications that regularly utilize steel rectangular tubing and square steel tubing include:

  1. Metal structures
  2. General fabrication
  3. Transportation equipment
  4. Manufacturing
  5. Frames
  6. Truck beds

The construction and engineering industries use hollow structural sections (HSS). HSS is a form of steel tubing and is commonly circular, square, or rectangular. In the UK the term HSS is not used. Instead, the basic shapes are named CHS (circular), SHS (square), and RHS (rectangular).

Rectangular hollow structural sections (HSS) are commonly used in welded steel frames which are subjected to loading from different directions. Square and circular HSS are often used as columns.

Difference Between Square Tube and Rectangular Tube

The cross-section of the square tube is square; the cross-section of the rectangular tube is rectangular.

Square Tubes are used for:

  • construction
  • machinery manufacturing
  • steel construction projects
  • shipbuilding
  • solar power brackets
  • steel structure engineering
  • power engineering
  • power plants
  • agricultural and chemical machinery
  • glass curtain walls
  • automotive chassis
  • airports
  • boiler construction
  • highway railings
  • building construction
  • pressure vessels
  • oil storage tanks
  • bridges
  • power station equipment

Square tubing is commonly used in industrial and domestic settings because of the numerous benefits it provides. Industries value square tubing for its strength and ability to withstand extremes of temperature, pressure and destructive elements. In domestic settings, square tubes are used in appliances, pipes, and fencing.

While rectangular tubes are used for:

  • a large number of pipes that are used to transport fluids, such as petroleum, natural gas, water, gas, steam, etc.
  • the manufacture of mechanical parts and engineering structure
  • used to produce a variety of conventional weapons, barrels, shells, and soon.

Rectangular tubes are generally used for maintenance and structural purposes. Some examples of applications would be building construction, railings, and truck frames. They are measured by their outside dimensions and their wall thickness.

Which is Stronger, Square or Rectangle Tubing?

Obviously, this depends on the relative size of the sections. Assuming that the rectangular section’s smallest dimension is equal to (or greater than) the square section’s side and their thicknesses are equal, then the rectangular section will always be stronger than the square, for any load in any orientation.
Rectangular and square steel tubing provides great strength-to-weight ratios, which means that less steel by weight is required to accomplish the job. These tubing products also provide outstanding support and compression features, which allow this shape of steel to be used for a wide range of column applications.
For applications that require the strongest possible steel, the tube is generally the way to go. It’s known to be significantly stronger than the pipe, and one of the strongest metal formats period.


  • A36
  • SS400
  • Q235B, Q345B
  • A500


  • Thickness: 1.0mm to 40mm
  • Width :  up to 500mm      Height:  up to 500mm
  • Length: 6M, 9M, 12M

Rectangular and Square Tubular Steel Prices in the Philippines

Our structural steel prices will be available based on the current Philippine market and therefore you are assured with a fair trade from us.

Please do not hesitate to send us your inquiries anytime with convenience.

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