CONSTRUCTION

Brookby is capable of supplying a full spectrum of products to meet the construction market.

Basecourse A range of basecourses are available to NZ Transport Agency Waka Kotahi and local authority specifications.

Sub-basecourses/Fill We have a large range of lower grade non specified basecourses available for subgrade improvement and general fill.  Unscreened granular fill material are also available.

Our Construction range:

  • NZTA M04 - TNZ40

  • Auckland Transport All Passing 40 - ATAP 40

  • Auckland Transport All Passing 65 - ATAP 65

  • General All Passing 40 - GAP 40 (non spec)

  • General All Passing 65 - GAP 65 (non spec)

  • General All Passing 7 - GAP 7 (non spec)

  • General All Passing 10 - GAP 10 (non spec)

  • General All Passing 20 - GAP 20 (non spec)

  • General All Passing 100 - GAP 100 (non spec)

  • Builders Mix

  • Drainage Chip 20/7

  • Drainage Chip 35/10

  • Run of Pit Brown - ROP

  • Clay Fill

NZ Transport Agency Waka Kotahi Specification for Basecourse Aggregates NZTA M04 2024

Auckland Transport Specification for the Supply of Aggregates for Pavement Construction ATAP65 ATAP40