Winstone Aggregates is New Zealand’s largest manufacturer and distributor of aggregates to the roading industry.
Sealing Chip
A range of high quality sealing chip from Grade 2 to Grade 6 is produced to meet NZTA specifications.
Basecourse
Products: CTB, TNZ40, GAPs
Winstone Aggregates produces NZTA compliant basecourse for use on state highways and other heavily trafficked areas. General-purpose GAP products are also available.
Sub-Basecourse 65mm – 100mm
For controlled hard-fill, sub-basecourses that meet local and national specifications are available.
Sub-Grade Improvement
Improve natural foundations with a variety of sub-grade fill aggregate including All Passing 100mm.
