Our credibility rests on our longstanding reputation for supplying quality steel that you can trust, delivered on time and on budget. As quality drives our thinking at Macdonald Steel, we support mills that are accredited by international organisations – ACRS, ILAC and ISO. Together, these accreditations give you the confidence and peace of mind that we’re the right supplier to help you get your job done right.

Macdonald Steel Certification

Our steel products comply with Australian and New Zealand standards, and we are certified under both the ACRS Traceability scheme and the SCNZ Distribution Charter. This means you can be assured you’re using steel that has been tested and assessed for quality and conformity.


We were the first steel supplier in New Zealand to be accredited under the ACRS traceability scheme. All of our construction steel is certified by ACRS, an independent steel certifier that confirms suppliers consistently deliver compliant steel.

Our ACRS accreditation enables us to trace every steel product you buy back to the mill, right down to an individual coil or plate. So you can be certain that the steel you order is the steel you get.

ACRS Structural Steel Chain of Certification

For structural steels, ACRS certifies the steel mill of manufacture, which must actively demonstrate the traceability of their supply to the steel distributor. ACRS is working with Steel Certification Australia to develop "end-to-end" certification from mill to site that will provide confidence in fabricated structural steels from the purchase of verified steel from ACRS-certified mills right through to delivery of the finished fabricated steel to the project site.

ACRS Reinforcing Steel Chain of Certification

For reinforcing steel, ACRS certifies both the steel mill that manufactures the steel and the steel reinforcement processor and mesh supplier. Verification of the outputs of both these supply streams is essential for any steel reinforcing materials claiming to conform with the Standards.



All our construction steel has been tested in labs independently audited by ILAC. This accreditation is a globally-recognised stamp of approval that shows the labs meet agreed standards and requirements.


ISO 9001

ISO 9001 is the world’s best known quality management standard. It demonstrates our suppliers commitment to putting our customers first and always meeting your expectations.


World Steel Association

Supporting the transition towards a carbon-neutral economy.

As an energy and carbon-intensive industry, we are part of the solution, but at the same time, we have a responsibility to address the impact of our own operations.



The Structural Steel Distributor Charter is the latest quality assurance initiative led by the structural steel industry, complementing the Steel Fabrication Certification scheme launched in 2014.

The Charter ensures that structural steels supplied to the local steel construction sector are sourced using best-practice procurement; it represents a mark of excellence for structural steel distributors in New Zealand.


The Sustainable Steel Council

The Sustainable Steel Council (SSC) is a group of industry leaders committed to the circular economy and New Zealand's low-emissions future.

SSC supports the sector in building skills, capacity and processes for maximising steel’s contribution to a sustainable, low-emissions and climate-resilient society. SSC is developing New Zealand’s first sustainable steel certification programme.



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