When it comes to building a patio, deck cover, or carport, the question we get asked most often at Smartkits Australia is simple:
"How far can it span?"
And the answer — with our insulated roof panel systems — might surprise you.
Thanks to cutting-edge panel design and genuine Colorbond® steel cladding, Smartkits insulated roofing can span up to 12.5 metres in the right conditions — with no need for bulky trusses or overbuilt frames.
If you're looking for a sleek, clean, open space with fewer posts, Smartkits insulated roof panels are your smartest option.
✅ Span Capabilities of Smartkits Insulated Roof Panels
At Smartkits, our kits use the best roofing technology available — including Solarspan®-style insulated panels that integrate steel cladding with high-performance insulation.
Depending on your site conditions, here's what you can expect:
75mm insulated panels span up to 6.5 metres under N2 wind classification
100mm insulated panels span up to 7.2 metres in similar wind zones
Under optimal engineering, spans can extend beyond 12 metres when wind ratings, pitch, and design allow
Every kit is designed and certified to meet your local wind classification and building requirements.
🛠️ What Affects How Far an Insulated Roof Can Span?
At Smartkits, we don’t guess. We engineer.
When calculating your span potential, we consider:
1. Panel Thickness
The thicker the insulated roof panel, the more strength and rigidity it offers. That means longer spans with fewer supports and a cleaner finish.
2. Wind Classification
Areas with higher wind classifications (N3, C2, etc.) will naturally require shorter spans or stronger panel setups than more protected N2 zones.
3. Roof Pitch
A low pitch (as little as 2 degrees) helps reduce uplift and allows for maximum span. All Smartkits roofs are engineered to your desired pitch and performance needs.
4. Cantilever Overhangs
Want that floating roof look? Cantilevers can often extend past supports for a premium finish — without sacrificing structure or safety.
5. Open Sides and Wind Direction
If your structure is open on three sides, it will catch more wind. Our engineering adjusts span limits to account for this, so your build remains safe and certified.
💡 Why Smartkits is the Clear Choice for Insulated Roofing
We’re not just a steel supplier — we deliver fully engineered, high-performance outdoor living kits to suit your home and climate.
Whether you're building in the suburbs, the tropics, or a coastal wind zone, Smartkits insulated roof panels are:
Delivered nationwide across Australia
Backed by genuine Colorbond® steel
Designed with clear-span capability in mind
Engineered for DIY or professional installation
Supported with council-ready documentation and expert advice
Our kits are perfect for patios, carports, alfresco extensions, and backyard makeovers — and they’re custom-designed for your wind region, size, and finish preferences.
🎉 EOFY Sale – Save Big, Span Further
Right now, Smartkits is offering:
20% off all kits (including insulated roofing options)
Free delivery up to $1,000 in metro areas when quoted via our design team
Only 10% deposit required to lock in your EOFY deal
Now is the time to build smarter — with engineered solutions that look great and last.
📞 Get Your Span Engineered Right – Contact Smartkits Today
Don’t guess your spans. Get them engineered. Get them delivered. Get them Smart.
👉 Start your quote at smartkits.com.au
👉 Upload your drawings or photos
👉 We'll design, quote, and engineer your structure — with full span details included
Smartkits. Australia’s insulated roof panel experts.
Written by
Scott Challen
CEO, The QHI Group - Licensed Builder (QLD, VIC, NSW)
SmartKits Australia | QHI National Builders | EzyBlox Sheds & Steel Buildings
Email: scott@qhi.net.au
LinkedIn: linkedin.com/in/scott-challen
Website: https://www.qhigroup.com.au/
Want to join our team? Interview - Scott Challen
"Build Smarter, Not Harder"
