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It is essential to support path edges to prevent lateral spread of the base layer and to protect the edges of the surface layer. Ideally the base layer is wider than the finished surface layer, with landscaped turfs providing a soft edge. This method increases the formation layer width and disturbance, so may not be suitable for some sensitive areas. However, it does give extra support to the path edges, and, can be very beneficial where path useage is high and the route is occasionally accessed by vehicles for maintenance purposes.

edging on a part excavated formation tray

Edging on a partly excavated formation tray

In sensitive areas or where corridor space is limited, the base and surface layers are kept at the same width. The undisturbed sides of the formation tray will provide adequate support to the path edge. Some vegetation encroachment will occur, but this may be desirable to give a visually softer path edge for a more natural look.




edging on a full excavated formation tray


Edging on a fully excavated formation tray

Find out more about path edges here.

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