Experts in large-scale construction solutions

With our unique structural systems and expert design engineers, cost-effective steel buildings of virtually any size and shape are possible, without compromising structural integrity.

Our design team will adapt our systems – DonoBeam or the patented Bracketless Portal System – to create a custom design to meet your exact specifications. We cater for everything from expansive commercial and industrial buildings for your retail premises or storage facility, to spacious hangars, workshops and factories.

By understanding your needs, we can deliver innovative, cost-efficient designs tailor-made for your business.

Why Choose Us

  • Strength

    With decades of construction experience, Coresteel is synonymous with strength and innovation. Our two unique steel frame building systems, DonoBeam and the Bracketless Portal System, expand the possibilities of building size and construction efficiency. Both systems have outstanding design and span capabilities, with DonoBeam boasting clear spans of up to 75m.

  • Sustainability

    DonoBeam is tapered to reduce the amount of steel needed for any given design, with high bending resistance and optimal tortional stiffness. With the volume of steel reduced by up to 30% against conventional systems, DonoBeam commits to less waste and less CO2 emissions.

  • One-stop shop

    We offer the complete construction package. From design and engineering, through to steel fabrication and construction, all aspects of your project are managed within our business, by our team of professionals. And with franchises spanning from Kaitaia to Invercargill, there’s a Coresteel expert around every corner.

Key Statistics

  • NZ's largest franchised commercial construction company #1
  • DonoBeam delivers
    steel weight savings
    up to
    30%
  • Achieve clear spans
    with DonoBeam
    of up to
    75m
  • Buildings
    manufactured
    so far
    2,234
Ready to start your next project?