20-40mm Washed Rounded Pebbles - Bulk 1 Tonne Bag (1 pallet)

The edges should be filled with a border of washed riverstones, in accordance with the GRO code of practice.

Objects such as roof lights and cables should be surrounded with riverstones to prevent root invasion and act as a fire break 300mm wide.
An aluminium edge trim can be added to any exposed edges or where the stones need to held away from objects such as
drainage outlets.