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Membrane allows water to drain away from your gravelled surface but prevents weeds and grass from growing through the gravel. Membrane can be placed under gravel, aggregates, stone or paving and is easily cut and shaped to fit in the required area, it should be placed on smooth compacted ground or you will need much more gravel to cover the area. Membrane comes in lay flat packs of 4.50 meters by 11.10 meters, giving approximately 50 square meters of membrane. | 
