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20MM SCORIA

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Daisy's 20mm Scoria is a lightweight aggregate, screened to be free of fine material, giving a clean, consistent grading well suited to drainage applications. Its larger size compared to 7mm Scoria makes it suited to applications requiring greater void space and faster water flow, while its light weight keeps it easy to handle and transport on site.

20mm Scoria is commonly used as a drainage aggregate, both in-ground and behind retaining walls, where it allows water to move freely while reducing pressure build-up. This makes it a practical choice for managing water flow in both garden and structural applications.

Its clean, screened grading and lightweight nature make 20mm Scoria a reliable option wherever effective drainage is required.

$ 97.50 $ 97.50

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20mm Scoria FAQs

Here are some common questions about our 20mm Scoria.

20mm Scoria is used as a drainage aggregate, both in-ground and behind retaining walls, helping manage water flow and reduce pressure build-up.

20mm Scoria is larger than 7mm Scoria, offering greater void space for faster water flow. Both are lightweight, screened aggregates suited to similar drainage applications, with the choice often coming down to the specific drainage requirements of the job.

Yes. We deliver bulk 20mm Scoria 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 Scoria are also available in 20L bags.

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

  • Lightweight Aggregate: A lightweight material, making it easier to handle and transport compared to denser aggregates.
  • Screened Grading: Screened to be free of fine material, giving a clean, consistent size suited to drainage use.
  • In-Ground Drainage: Commonly used as an in-ground drainage aggregate, allowing water to move freely through the soil.
  • Retaining Wall Drainage: Also used behind retaining walls, helping reduce water pressure build-up and support structural stability.
  • Versatility: Suited to both garden and structural drainage applications, making it a practical all-rounder.

Please note that while every effort is made to ensure consistency, there may be slight variations in the product compared to what is displayed online. As our products are naturally sourced or recycled, some variation is to be expected. For the best impression, we recommend visiting our stores in person.


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