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Signature M40 System

Bespoke Design | Exceptional Finish

We are your trusted manufacturer, supplier & installer of modern architectural custom steel windows and doors. When sourcing steel products on behalf of clients, Metro Steel Windows is the ideal partner for a bespoke design, careful fabrication and exceptional finish. We manage end-to-end processing for maximum client satisfaction.


Metro’s signature M40 system is the slimmest functioning steel-framed window and door system, offering unmatched efficiency and durability through design and material innovation. Engineered to suit the diverse and unique Australian conditions, the M40 system combines heritage aesthetics with modern technology.

Starting with a galvanized base material, the M40 system undergoes a cold-rolled manufacturing process that creates a robust and lightweight modern steel profile, ideal for high-end architectural residential and commercial projects. The system’s minimalist aesthetic, durability and functionality make it a preferred choice among architects across Australia.

Each frame undergoes extensive treatment, priming, and quality control processes before receiving a premium 2pac paint finish, making the M40 system easy to maintain and suitable for all environmental conditions. Approximately 50% thinner in elevation compared to other steel profiles, the M40 system is sophisticated and refined.

Metro is always focused on providing quality custom steel-framed door and window solutions that are seamless and functional, going beyond the product to offer end-to-end servicing for architects, builders, and interior designers.

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    Our Reach

    Our operations centre is located in Melbourne, however our reach extends to locations all across Australia. Metro Steel Windows has extensive supply and installation capabilities, with the ability to supply international clients as well.

    Our Capacity

    Our procurement process and project management is second to none, with an impeccable and reliable supply chain. Metro Steel Windows can guarantee a competitive lead-time, from approval of shop drawings to delivery of products for installation.

    Our Footprint

    Steel is a sustainable product, as it is 100% recyclable. Metro Steel Windows works with steel because the material helps to create an energy-efficient home, through adding sustainability to heating and cooling practices. We also provide thermally broken systems, which achieve excellence in terms of their thermal and acoustic specifications by incorporating modern technology.

    Our Quality

    Metro Steel Windows offers a wide range of custom framing and glass options that have an exceptional fit and finish. Our steel frames undergo extensive processes, ensuring a lasting and durable standard is upheld. All Metro Steel Windows products are supplied, and can be installed and glazed. Glazing is completed on site after the frame installation, securing all final touches of your desired aesthetic.

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