TKL News

All about Rectangular Tube

by TKL Steel August 15, 2023

A rectangular tube is a form of structural element that is extensively used in construction and engineering applications. It is also known as a rectangular hollow section (RHS) or rectangular steel tubing as it is distinguished by its rectangular form and hollow interior.

TKL Steel has a wide range of Rectangular tube sizes available. Please see the readily available stock sizes in the image below. If you have other size requirements, feel free to message our sales associates for assistance.

Thickness (mm): 0.9, 1.2, 1.35, 1.5, 1.8, 2.0, 3.0, 4.0, 5.0, 6.0

Size (inches): 3/4 x 1 1/2, 1 1 x 2, 1 x 3, 2 x 3, 2 x 4, 2 x 6, 4 x 6, 4 x 8

Advantage of using Steel Rectangular Tube

Rectangular Tube is used due to the following benefits.

  1. Durability

    The rectangular shape of the tube gives enhanced torsional rigidity and durability compared to alternative designs like round tubes or beams. This makes rectangular tubes useful for applications that demand structural integrity and the capacity to sustain severe loads.

  2. Aesthetic Appearance

    Rectangular tubes are frequently used in architectural and design applications due to their clean lines and modern appearance. They have a sleek and contemporary appearance, making them perfect for situations where visual appeal is crucial.

  3. Versatility

    Rectangular tubes are extremely adaptable and have a wide range of uses in numerous industries. They are flexible to diverse design and construction requirements because they are easily cut, welded, and shaped to meet specifications.

  4. Ease of Connectivity

    The straight edges of rectangular tubes make it simpler to attach and connect them to other structural elements. Compared to curved or irregular shapes, welding or attaching rectangular tubes is easier.

Uses of Rectangular Tube

The rectangular tube has a variety of other construction applications.

  1. Railings

    Rectangular tubes are frequently utilized in the construction of staircases and handrails. They provide strength and stability to ensure safe and secure passage between building levels.

  2. Roof trusses

    Rectangular tubes are frequently utilized as roof trusses. They provide a lightweight and long-lasting option for roof structure support.

  3. Decorative material

    Rectangular tubes can also be utilized as a decorative material in structures by adding an aesthetic appeal due to their shape and appearance.

  4. Structural framework

    Rectangular tubes are commonly utilized in building frameworks as structural components for columns, beams that enable excellent load distribution and bending, and torsion resistance.

  5. Fencing and gate frames

    Rectangular tubes are often utilized as frames for fencing and gate construction, as it provides additional support to the structure.

Are you looking for a trusted steel supplier that provides good quality steel products at competitive prices? Contact TKL Steel Corporation, the trusted steel supplier in the industry with over 35 years of experience in valuing the trust of our customers and providing good quality steel products at competitive prices. For inquiries, you may reach us at 0917 808 8528, 0919 086 6017, (02 )8588 1155, email us at or send us a message on our official Facebook page and our friendly sales associate will assist you with your steel requirements.


Tencom Ltd. (2022, March 1). The advantages of fiberglass rectangular tubing. tencom ltd custom pultrusions.

What is a rectangular tube? Characteristics and uses of rectangular tubes. JIADE Steel Pipe. (n.d.).