COLORSTEEL® for Insulated Panels has been specifically developed for insulated panel applications. It is comprised of either a traditional zinc-coated or Zincalume® steel substrate combined with a custom-formulated paint system. 

Ensure your insulated panels are made with genuine COLORSTEEL®. There are manufacturers across the country using COLORSTEEL® for Insulated Panels, including Metalcraft Insulated Panels, Freeman Group, Conqueror, Bondor and Expol. 

The local brand you know and trust, in applications that have outstanding thermal performance, are cost effective and fast to install. 

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    Structural Wall Panelling, Steel Roofing, Roof & Ceiling Insulation
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The COLORSTEEL® substrate used in the manufacturing process of coolroom insulated panels is galvanised G300 Z275 AS1397 steel. The COLORSTEEL® substrate used in the manufacturing process of interior/exterior structural insulated panels is Zincalume® G550 or G300 AZ150/AZ200 AS1397.

Scope of use

Interior and exterior structural insulated panels as well as cool room panels

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COLORSTEEL® is made, tested and trusted for New Zealand conditions. We are inspired by the colours and landscapes that surround us and, in turn, we strive to create products that will inspire you. For more inspiration, visit

To learn more about the winning projects and professionals celebrated at our recent COLORSTEEL® Awards 2023, click here.

Our story started over 40 years ago when New Zealand Steel began making COLORSTEEL® roof and wall cladding products from New Zealand iron sand. It was a world first, and a feat that required imagination, ingenuity and sheer determination. 

These qualities have become COLORSTEEL® pillars - it’s who we are and how we work. 

For New Zealand:
We’re inspired by the landscape around us. From snow topped mountains to tussock grasslands, you’ll see New Zealand reflected in everything we create.

COLORSTEEL® products also undergo intense, long-term colour performance and exposure testing. So you can be sure they’re made and trusted for our conditions. We’re so confident in the durability of our products, we back them with robust warranties.

For you:
We’ve developed COLORSTEEL® products to meet the needs of New Zealanders. Whether it’s roofing your dream home, building a fence or cladding a warehouse– there’s a COLORSTEEL® solution for your project.

By combining beauty, durability and flexibility, we believe COLORSTEEL® is about more than just a steel solution - it’s about turning metal into magic and transforming the everyday.

For the environment:
All COLORSTEEL® solutions carry the Environmental Choice NZ licence which means they can contribute to the achievement of maximum points in Homestar and Green Star materials credits with NZ Green Building Council.