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Aggregate · 08.05

25–75mm Blue Rock

Large, hard-wearing crushed rock for drainage, stabilising slopes and banks, retaining walls and solid driveway sub-bases.

  • 25–75mm
  • Crushed rock
  • Blue-grey
  • Sold per m³
25–75mm Blue Rock 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

25–75mm Blue Rock is a large, hard-wearing crushed rock in blue-grey tones. The size range promotes water flow, reducing waterlogging and soil erosion, and it stands up to heavy use and harsh weather. It is used for drainage systems, stabilising slopes, water features, retaining walls and driveway or path sub-bases. Lay about 100mm or more deep.

25–75mm Blue Rock at a glance
Size25–75mm
MaterialHard-wearing crushed rock
ColourBlue-grey
Sold byThe cubic metre
Typical depthAbout 100mm or more
CoverageAbout 10 m² per m³ at 100mm
Approx. weightAbout 1.5 tonnes per m³

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

Why choose it

Best features

  • 01Blue-grey tones have great aesthetic appeal
  • 0225–75mm size range promotes optimal water flow, reducing risks of waterlogging and soil erosion
  • 03Durable for heavy use and harsh weather

Where to use it

Versatile applications

  • 01Creating drainage systems
  • 02Stabilising slopes
  • 03Garden beds
  • 04Water features
  • 05Retaining walls
  • 06Driveway and path sub-bases

Stability and durability

Produced from hard-wearing, crushed rock, this aggregate is designed to endure heavy use and harsh conditions. The stability of the 25–75mm rock makes it a great solution for retaining to reduce erosion of garden beds and stabilise banks. It is also great for driveways as it is compact enough to form a solid foundation layer that ensures longevity.

Common questions about 25–75mm Blue Rock

What is 25–75mm blue rock used for?

Drainage systems, stabilising slopes and banks, retaining walls, water features and as a sub-base under driveways and paths.

Can I use 25–75mm blue rock under a driveway?

Yes. It forms a solid foundation layer. Top it with a finer material such as road base or crusher dust for a smooth, drivable surface.

How much 25–75mm blue rock do I need?

One cubic metre covers about 10 m² at 100mm deep.

Compare with

40–70mm Recycled Concrete

Large, robust recycled concrete for roads, foundations, sub-base layers and retaining walls. Holds up to wear and drains freely.

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