Aggregate solutions for commercial, infrastructure and residential use.

Aggregate Products


Sealing chips, basecourses, sub-basecourses and subgrade aggregates manufactured for use in roads and heavy duty pavements.

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Permeable or blended aggregates in fine or coarse specifications for drainage applications.

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Sand and pumice aggregates produced in a range of specifications for use in a variety of applications including manufacturing, sports turf and horticulture.

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Concrete aggregates manufactured for strength and binding ability and produced to consistently fine tolerances.

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Specialised products for use in landscaping, construction and infrastructure.

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Our Team

Our aggregates team have been industry forerunners since 1912. We’re not just experts in aggregate extraction, processing and distribution, we’re committed innovators. We are continually working to develop new technologies and processes that will lighten our effect on the environment while delivering the best products possible. Quality and consistency are as important to us as they are to you.



Emerald anniversary for Colin Stretch

23 Sep 2021

Drury Maintenance Engineer Colin Stretch will celebrate an impressive 55 years of service with Stevenson in December. In 1966, Colin started with Stevenson in a maintenance role at Mount Smart Quarry. It wasn’t his first job. He’d had been working in the Central North Island, at Tūrangi on the power scheme and in Tauranga, quarrying […]

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