40-60mm Crushed Concrete Drainage Metal

Large, heavy drainage aggregate for high-capacity & industrial applications

Our 40-60mm crushed concrete drainage metal is a large, coarse recycled aggregate ideal for heavy-duty water management and structural drainage applications. With stone sizes between 40mm and 60mm, this product is designed for environments where maximum flow and reduced blockage risk are essential.

This grade is commonly used across commercial, rural, and infrastructure projects throughout New Zealand.

Typical Applications

  • Large soak pits & detention systems
  • High-capacity stormwater trenches
  • Roading sub-base drainage layers
  • Rural effluent & drainage systems
  • Large retaining wall drainage
  • Rail corridor drainage
  • Stabilisation layers under heavy structures


The size and stability of 40-60mm drainage metal make it a preferred option when performance and long-term reliability matter most.

Why Choose 40-60mm Recycled Crushed Concrete?

✔ Maximum Flow Capacity

Wide void spaces allow consistent water movement even under heavy loads.

✔ Superior Stability for Civil Works

Large angular particles are resistant to settlement and displacement.

✔ Eco-Friendly & Cost-Effective

Recycled crushed concrete is a sustainable, budget-conscious alternative to quarry stone.

✔ Strong & Durable

Cleaned and screened concrete aggregate ensures dependable drainage for long-life systems.

✔ Hamilton-Based Supplier

We supply bulk loads throughout Waikato and NZ.

Key Specifications

Size: 40-60mm

Material: Recycled crushed concrete

Applications: Large drainage trenches, soak pits, civil works, rail, roading

Performance: Very high drainage capacity

Order 40-60mm crushed concrete drainage metal today

Contact us today for pricing, availability, and delivery options across Hamilton, Waikato and the rest of NZ.