This 14mm aggregate is perfect for drainage. Commonly used to back fill behind a retaining wall, core fill to retaining wall blocks and to cover drainage lines. This 14mm aggregate can also be used as a cheap alternative for a decorative gravel path. Add steppingstones to your gravel path for a neat finish. When using as drainage material, wrap the aggregate in Geo - fabric where possible to stop silt building up in gravel and stopping water flow.
