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Road base · 09.02

Road Base 2.3 – CBR45

The everyday all-rounder. A CBR of 45 gives a stable, long-lasting base for driveways, carparks, paver bases and slab foundations.

  • Type 2.3
  • CBR 45
  • Stable
  • Sold per m³
Road Base 2.3 – CBR45 supplied in bulk by Bulk Landscape Supplies Brisbane
Natural product. As our products come from natural sources, they may slightly differ in colour, shape and size. Website images are a guide only.

Quick answer

Road Base 2.3 – CBR45 has a California Bearing Ratio of 45, the rating common for standard roads, driveways and parking areas. It is long-lasting, stable, durable and easy to install, and compacts into a firm base for carparks, driveways, landscape levelling, paver bases and concrete slab foundations. Lay about 100–150mm and compact.

Road Base 2.3 – CBR45 at a glance
GradeType 2.3
CBR45
Best forStandard roads, driveways and parking areas
Sold byThe cubic metre
Typical depthAbout 100–150mm compacted
CoverageAbout 7–10 m² per m³
Approx. weightAbout 2.0 tonnes per m³

Coverage and weight are approximate. Check your area with the volume calculator.

Why choose it

Best features

  • 01Long-lasting
  • 02Stable
  • 03Durable
  • 04Easy to install

Where to use it

Versatile applications

  • 01Carparks
  • 02Driveways
  • 03Landscape levelling
  • 04Paver bases
  • 05Concrete slab foundations

Compare grades

Which road base grade?

CBR (California Bearing Ratio) measures how much load a compacted base can carry. The higher the number, the stronger the base.

GradeCBRTypical use
Road Base 2.1 – CBR8080Heavy-duty, high-traffic pavements and road construction
Road Base 2.3 – CBR4545Standard roads, driveways and parking areas (this product)
Road Base 2.5 – CBR1515Landscape levelling, paver bases and lighter-duty areas

Strength

The key feature of Road Base 2.3 is its exceptional California Bearing Ratio (CBR) of 45. This high rating ensures that the material offers superior load-bearing and structural integrity, making it the ideal base for both light and heavy-duty applications. Whether you are constructing a driveway, a road, or a foundation, the CBR45 rating guarantees a long-lasting, stable base.

Choosing a grade

A CBR of 80 or higher (e.g. Type 2.1) is ideal for heavy-duty, high-traffic pavements, while CBR 45 is common for standard roads, driveways, and parking areas.

Common questions about Road Base 2.3 – CBR45

Is CBR45 road base good for driveways?

Yes. CBR 45 is the common choice for standard roads, driveways and parking areas.

Can I use 2.3 road base under pavers?

Yes. It compacts into a firm, level base for pavers and concrete slabs.

How much road base do I need?

Allow 100–150mm compacted. One cubic metre covers about 7–10 m² at that depth; order a little extra because it compacts down.

Tell us the job. We’ll tell you how much.

Send through the product, quantity and delivery suburb and we’ll come back with a price and a delivery time.