Road base · 09.02
The everyday all-purpose grade. CBR45 gives a stable, long-lasting base for driveways, carparks, pavers and slab foundations.
Quick answer
CBR45 is the rating most ordinary roads, driveways and parking areas are built to, and Road Base 2.3 – CBR45 meets it. It’s easy to lay and, compacted 100–150mm deep, makes a firm, long-lasting base for carparks, driveways, landscape levelling, pavers and slab foundations.
| Grade | Type 2.3 |
|---|---|
| CBR | 45 |
| Best for | Standard roads, driveways and parking areas |
| Sold by | The cubic metre |
| Typical depth | About 100–150mm compacted |
| Coverage | About 7–10 m² per m³ |
| Approx. weight | About 2.0 tonnes per m³ |
These coverage and weight figures are a guide. Work out your own area with the volume calculator.
Why choose it
Good jobs for it
Compare grades
CBR (California Bearing Ratio) tells you how much load a compacted base can carry. A higher number means a stronger base.
| Grade | CBR | Typical use |
|---|---|---|
| Road Base 2.1 – CBR80 | 80 | Heavy-duty, high-traffic pavements and road building |
| Road Base 2.3 – CBR45 | 45 | Standard roads, driveways and parking areas (this product) |
| Road Base 2.5 – CBR15 | 15 | Landscape levelling, paver bases and light-duty areas |
What sets Road Base 2.3 apart is its California Bearing Ratio (CBR) of 45. That rating gives it strong load-bearing capacity and structural integrity, so it works as a base for both light and heavy-duty jobs. For a driveway, a road or a foundation, CBR45 gives you a stable base that lasts.
A CBR of 80 or above (such as Type 2.1) suits heavy-duty, high-traffic pavements. CBR 45 is the standard rating for ordinary roads, driveways and parking areas.
Yes. CBR 45 is the standard choice for ordinary roads, driveways and parking areas.
Yes. Compacted, it gives pavers and slabs a firm, level base.
Plan on 100–150mm compacted. At that depth, one cubic metre covers roughly 7–10 m². Order a little extra, as it compacts down.
Tell us what you need, how much of it and where it’s going, and we’ll reply with a price and a delivery time.
