5-10 mm (Pea Metal) Crushed Concrete Drainage Metal
High-quality recycled aggregate from Hamilton, supplying Waikato & NZ wide
Our 5-10 mm (often called “pea metal”) crushed concrete drainage metal is a premium-grade recycled concrete aggregate produced by crushing, screening and cleaning demolition concrete. It is sized to between approximately 5 mm and 10 mm, firmly graded for drainage uses and manufactured to fit our stringent quality standards.
Using recycled crushed concrete means you’re getting a material that retains much of the original concrete’s strength while diverting waste from landfill and reducing reliance on virgin quarry aggregate.
Typical uses & applications
The 5-10 mm size range makes this drainage metal ideal for applications where fine but free-draining aggregate is required. Common use cases include:
- Bedding for drainage pipes around residential/commercial projects
- Surrounds for sub-soil drainage systems (e.g., behind retaining walls, beneath slabs)
- Filter aggregate layers in landscaping or civil works where surfaces need to shed water but still support load
- Under paved areas or where a clean, stable base is required but the aggregate size must remain small.
Because the material is recycled crushed concrete, it also provides excellent value when you want sustainability and cost savings alongside performance.
Why choose 5-10 mm recycled crushed concrete drainage metal?
Excellent drainage performance – The angular shape of crushed concrete particles helps maintain flow paths and minimize clogging, which is crucial in drainage applications.
Sustainable choice – By choosing recycled crushed concrete, you reduce the amount of demolition waste sent to landfill, conserve natural aggregate resources, and lower carbon footprints associated with transport and extraction.
Cost-effective – Recycled aggregates often cost less than virgin aggregate and can deliver comparable performance when sized and processed properly.
Quality assured – We supply from Hamilton so you’re dealing with a local supplier in the Waikato region, offering timely delivery across NZ and a material you can trust for consistency and performance.
Space-efficient & versatile – The smaller 5-10 mm size is particularly handy for tighter spaces, filter layers, and pipe surrounds where larger aggregate might be too coarse or bulky.
Key specifications & things to consider
When specifying or selecting 5-10 mm recycled crushed concrete drainage metal, keep the following in mind:
- Gradation / size range – Ensure the 5-10 mm sizing is relatively clean (i.e., minimal fine material) so that drainage is not impeded. Many comparable drainage metals are described as “clean size” (free of fines) in NZ suppliers.
- Cleanliness – Contaminants (e.g., timber, gypsum, large reinforcement) must be removed so the material performs reliably. Recycling best‐practice guidelines emphasize this.
- Compaction & bedding depth – For drainage applications, proper placement and compaction/settlement control matter. Even though the material is used for drainage (not solely structural fill), the base beneath or around it may need stabilization.
- Compatibility with pipe size & design – For pipe bedding or surrounds, confirm with your engineer or installer that 5-10 mm is the correct size spec for the trench, pipe diameter, cover depth and flow conditions.
- Local supply / transport – Because you’re based in Hamilton and supply NZ-wide, make sure delivery logistics, load size and lead times are considered when planning projects.
Why choose us - your local NZ supplier
Based in Hamilton (serving the greater Waikato region) with the capability to supply nationwide, we specialize in high-quality recycled crushed concrete drainage metal. Choosing us means:
- Local expertise in recycled aggregate (we know the region, transport efficiencies and local project demands)
- Sustainability built in: we turn demolition concrete into high value aggregate, diverting waste from landfill and reducing pressure on natural quarries in NZ.
- Flexible delivery across Waikato and beyond – whether a small residential job or a large civil contract, we can support you.
- Broad range of sizes in our drainage metal product line, you can match the exact size grade you need (and we’ll help you determine that if you’re unsure).
Need the 5-10 mm (pea metal) recycled crushed concrete drainage metal now?
Get in touch with us for a quote today, we’ll work out delivery, timing, sizing, and help you choose the right material for your job. Let’s make your drainage project efficient, sustainable and cost-effective.