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  4. 20MM B GRADE CRUSHED ROCK
  5. Crushed Toppings for Driveways and Pathways
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20MM B GRADE CRUSHED ROCK

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Daisy's 20mm B Grade Crushed Rock is a durable material that compacts hard, making it ideal for building a stable, load-bearing base. It is commonly used under paving and concrete slabs, where its main function is to build height and create a firm, compacted foundation.

For best results, this product should be laid to a minimum depth of 50mm, moistened with water, and compacted using a roller or vibrating plate compactor. Proper moisture content and compaction are key to achieving a solid, long-lasting base that resists movement and settling under paving or slabs.

$ 69.00 $ 69.00

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20mm B Grade Crushed Rock FAQs

Here are some common questions about our Class 3 Crushed Rock.

It should be laid to a minimum depth of 50mm to achieve proper compaction and create a stable base under paving or concrete slabs.

Moisten the material with water, then compact it using a roller or vibrating plate compactor. Proper moisture content helps the material bind together for a firm, long-lasting base.

Yes. We deliver bulk 20mm Crushed Rock Class 3 across Melbourne and surrounding areas. Select your required volume at checkout and use our Volume Calculator to estimate how much you need. Need a smaller amount? Our 20mm Crushed Rock Class 3 is also available in 20L bags.

Use our Volume Calculator on this page to enter your garden dimensions and get an instant estimate.

  • Compacts Hard: 20mm Crushed Rock Class 3 compacts hard, forming a dense, stable base suited to load-bearing applications.
  • Builds Height: Commonly used under paving and concrete slabs, where its main function is to build height and create a firm foundation before final surfacing.
  • Minimum Depth Guidance: Should be laid to a minimum depth of 50mm to achieve proper compaction and long-term stability.
  • Compaction Method: Best results are achieved by moistening the material with water and compacting it using a roller or vibrating plate compactor.
  • Reliable Base Material: Its compaction properties make it a dependable choice wherever a stable, level base is required under paving or concrete work.

 Please note while every effort is made to ensure consistency, there may be variation in the product from what is displayed online. Our range is naturally sourced or recycled, so variation can occur. It's best to visit our stores in person to get the best impression.


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