40mm Capping
The structural cap, 40mm capping where the fill below needs bridging as well as sealing.
About this product
40mm capping does the same job as its 20mm sibling with more bite: the coarser grading keys into rubble and soft fill below, bridging weak spots while still trimming to a workable platform. It’s the standard first cap over deep or variable fills.
Used through subdivisions, industrial estates and road projects across Victoria, typically followed by a 20mm cap or directly by sub-base. Natural and recycled options by the truckload.
Specifications
| Material type | Capping / select fill |
|---|---|
| Nominal size | 40mm |
| Specification | To project and geotechnical requirements |
| Function | Bridges and stabilises soft subgrade |
| Typical compacted density | ~2.0 to 2.2 t/m³ (indicative) |
| Common uses | Subgrade capping and working platforms |
Figures shown are indicative typical properties and vary by source; details for your delivery are available on request.
Use cases
Supply & delivery
Tipper & truck and trailer
Full loads to open sites, sized to your access and the day's program.
Truck & quad
Maximised payload where site access and mass limits allow it.
Live in NXT Control
Every load GPS-tracked from the weighbridge to your gate, with the tonnes on the docket.
Over soft subgrade
Placed and compacted to stabilise variable ground before pavement works.
How much do you need?
As a guide, this material weighs around 2.1 tonnes per cubic metre. Multiply your area by the layer depth to get the volume, then by the density. Tell us the area and depth on the quote form and we will convert it to tonnes and price the delivery for you.
100 m² at 200 mm deep = 20 m³ × ~2.1 t/m³
Common questions
What is capping used for?
What size should I use?
How is it delivered, and can I track it?
Need rates for 40mm Capping?
Tell us the volume, the site and the program. Every load is tracked live through NXT Control, from quarry to your gate.