Drainage Stone - GreenBlue Urban
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Drainage Stone

Selected aggregates for tree pit drainage

Aggregate was selected especially for its free-draining characteristics and structural performance. Provides drainage zone at the base of tree pits to prevent waterlogging in the soil. Also used as backfill material around the perimeter of tree pits to eliminate differential settlement of finished surfaces.

The HydroPlanter drainage stone is a similar, but smaller aggregate, used in the base of HydroPlanter systems.


  • Provides base and side aggregate stabilisation required for load-bearing urban tree pits.


Code Description Grading
DRSTC Drainage Stone 10-20mm
DRAINA HydroPlanter Drainage Stone 4-10mm

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