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​Address: 18-20 Charles St, St. Marys NSW 2760

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We keep
your build moving.

Smarter, compliant structural steel solutions backed by expertise and service builders trust.

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end-to-end Steel.

Your complete structural steel partner providing 3D detailing, fabrication, delivery and onsite support. Speak with us for a project quote.

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Buy Online. Fast.

In-stock lintels, T-bars, grates, drains and site essentials ready to dispatch.

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Building smarter, together

Since 2010, Steel Builders has grown from a start-up supplier into a trusted partner for builders, engineers, and certifiers across New South Wales. Our focus has always been simple: deliver smarter steel solutions that save time, reduce risk, and ensure compliance.

Explore our product range

Our services

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NCC Compliance you can Trust.

Strength, durability, and peace of mind, backed by Australian Standards.

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SMART BUILDS, MADE SIMPLE.

See how our SMART range delivers faster delivery, safer installation, and better build efficiency.

Trusted by project builders and trades across NSW

See what industry professionals say about working with Steel Builders

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Alex Smith

Client Review

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Drew Carlyle

Client Review

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Charlie McMann

Client Review

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Construction Worker Portrait
Peter Black

Client Review

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