When it comes to sheds, what’s inside the frame matters most. The steel used to build the frame is the backbone of your shed, responsible for its strength, stability, and long-term performance.
At CV Sheds, we build with Australian-made Rectangular Hollow Section (RHS) steel. But we understand that some customers are weighing up their options, especially when looking at cheaper alternatives.
Here’s what you need to know about RHS steel and how local and imported options compare, so you can make an informed decision for your project.
What Is RHS Steel and Why Does It Matter?
Rectangular Hollow Section (RHS) is a type of structural steel with a hollow, rectangular cross-section. It’s used as the framework for your shed, giving it the strength to stand up to wind, weight, and years of use. Think of RHS as the skeleton of your shed; if it’s solid and well-made, your whole structure benefits.
The type of RHS you choose affects:
– The shed’s long-term durability
– Its ability to withstand Australian weather
– How easily it passes council and engineering approvals
– It’s designed to exceed Australian standards, not just meet them
Not all RHS is created equal. That’s why choosing the right product at the start is so important.
Why We Use Australian-Made RHS Steel
Not every shed project needs a premium product, but for those that do, Australian RHS offers a clear advantage. Here’s why we use it on every build.
Built for Australian Conditions
Australian-made RHS is manufactured to strict local standards (AS/NZS), with the climate in mind. It performs reliably in everything from inland heat to coastal wind and rain.
Certified and Traceable
Each piece is marked and documented, giving you (and your building surveyor) peace of mind that it meets compliance requirements.
Welded to Last
Thanks to consistent composition and no added boron, local RHS is easier and safer to weld, helping us deliver stronger joins and a more durable shed.
Simplifies Permits and Approvals
When your materials already meet Australian standards, it’s easier to get your shed plans approved. There’s no need for extra engineering reports or added compliance checks.
Supports Aussie Jobs and Industry
By choosing locally made steel, you’re helping support Australian manufacturing and reducing reliance on imported materials.
At CV Sheds, we’ve been building with Australian-made RHS for over 40 years. That’s thousands of sheds across Central Victoria, each one designed to last, and backed by materials we know and trust.
We’ve seen how Australian RHS stands up to the test of time: no unexpected cracking, no early corrosion, no dramas with weld integrity. It holds strong in the face of high winds, blazing sun, and heavy rain because it was designed to, right here in Australia, for Australian conditions.
When we choose Australian RHS, it’s not just about specs on a page; it’s about decades of experience, proven performance, and confidence in every weld. That’s what lets us say our sheds aren’t just strong today. They’re still going strong decades later
What About Imported RHS?
Imported RHS (from overseas suppliers) can be a more economical option for projects with less demanding structural or compliance needs.
The upfront material cost is typically cheaper, and for projects where full engineering certification or long-term performance isn’t critical, it might seem like a good fit.
However, it’s important to understand what you may be trading off, including;
Inconsistent Quality – Not all imported RHS meets Australian standards. Some batches may vary in thickness or chemical makeup, which can affect strength and weldability.
Compliance Gaps – Many imported products don’t come with the right documentation. This can slow down approvals and may require you to treat the frame as a ‘Performance Solution’ under the National Construction Code (NCC), adding time and cost.
Unknown Welding Properties – Some imported steels include additives like boron, which can interfere with welding. This may require extra testing or alternate fabrication methods.
No Local Warranty or Support – If issues arise, dealing with overseas suppliers can be tricky. With Australian steel, you have local support and full traceability.
So while imported RHS may offer upfront savings, it’s important to weigh those against the potential for delays, additional engineering, or early structural issues.
Matching Materials to Your Project
At CV Sheds, we’re the first to say: not every project needs the highest spec. But if you’re looking for a fully compliant structure, designed to last, and built to perform under pressure, you’ll want to invest in quality materials right from the start.
That’s why all our sheds are built using Australian-made RHS steel and genuine COLORBOND® cladding. It’s what allows us to say our sheds are truly Built for Generations.If you have questions about the best approach for your shed, we’re here to help. Get in touch with the CV Sheds team for expert advice tailored to your project, your site, and your goals.