How to Select the Right RHS Pipe for Your Project

Searching for the right type of pipe for your project can be daunting. However, it doesn’t have to be! With all the options available, from RHS (Rectangular Hollow Section) pipes to rounded tubes that are more suited for curved and angular projects, understanding the best option based on your specific needs is essential in completing a successful job. In this blog post, we will explore what makes RHS pipes unique and how to choose them correctly so you get the most out of every build.

What is RHS Pipe?

RHS Pipe stands for Rectangular Hollow Section (RHS) Pipes, commonly used for framing and structural purposes. These pipes are made of ferrous or non-ferrous alloy materials such as aluminium, brass, copper, stainless steel and carbon steel. This type of pipe is often used for large construction projects due to its durability and strength. Additionally, they come with perfect dimensional accuracy that makes them easy to install into various structures without any difficulty. They can also be customized according to the needs and requirements of each specific project.

How to Choose the Right RHS Pipe


RHS stands for Rectangular Hollow Section, typically made from various metals, including mild steel. Depending on the intended application, the metal used may need to be more robust than mild steel to provide greater strength and protection. Examples of this include stainless or galvanized steel as well as aluminium alloys. The most common way of producing RHS pipe is by cold forming a flat strip into a hollow section shape and then welding it closed along its length using an automated process called ERW (Electric Resistance Welding). This gives superior strength to traditional lapping techniques, which lacked filler material between two joined sections. Ultimately, the right pipe material must be selected based on the specific demands of each application.


RHS stands for “Rectangular Hollow Section” and is a type of metal profile with a hollow cross-section. The size of the section refers to its width in millimetres (mm) x height in millimetres (mm) x wall thickness in mm; the actual sizes available will vary from manufacturer to manufacturer. Common sizes include 25mm x 50mm x 3mm, 40mm x 40mm x 3.2mm, 60 mm x 40 m 2.5-3 mm, 80 mm x 40 m 3-4 mm etc., but specialized purpose sizes can also be made on request. When dealing with RHS materials, it is important to consider the size and grade, as this affects both the cost and strength of your project’s overall structural integrity.


RHS pipes come in various shapes, including square, rectangle, and circular. The shape will also have an impact on your project’s stability. When deciding, consider factors like load, forces acting on the pipes, and structure dimensions.


The final finish is an essential factor that should be considered. The finish will determine the pipe’s aesthetic appeal, durability, and corrosion resistance. The typical finish is mill-finished steel, but you can opt for powder-coated finishes that offer additional protection against corrosion and wear and tear.


The price factor must be addressed. You’ll need to consider your budget limitations, delivery expenses, and total costs. The most economical option is usually steel RHS pipes, but this would depend on several factors. Compare prices and quality from different vendors to get the best deal.


In conclusion, selecting the right RHS pipe for your project will depend on several factors. Before selecting an RHS pipe, know your project’s purpose, required load capacity, and other specifications. You can also consult an expert to help you make the right decision. Considering the material, size, shape, finish, and cost, you’ll be better equipped to make an informed decision. Choosing the right RHS pipe will save you from future expenses and guarantee a successful project.