Pond Edging & Ground Spikes

Create a stable, accurately levelled pond perimeter

Flexible edge restraint gives a liner pond a defined level boundary before underlay and liner are installed. The Oase PondEdge 25m rolls form curves and straight sections, while standard and XL PondEdge spikes secure the system to suitable ground.

A carefully set edge does more than make the pond look tidy. It controls the waterline, supports the liner transition and helps prevent low points where water escapes unnoticed into surrounding soil.

Set the finished water level first

Use a reliable laser or water level around the entire perimeter and mark the intended waterline. Allow for the liner, underlay, coping and any capillary break. Fixing the edging by eye almost always creates visible high and low points once the pond is filled.

Choose the correct spike and spacing

Ground conditions, edge height and curves influence the required spike length and spacing. Follow Oase guidance, add support through tighter curves and do not force spikes through buried services or unsuitable hard ground. The restraint should be stable before the liner is laid.

Protect the liner from sharp edges, cap fixings as specified and finish the perimeter so soil or turf cannot wick water out of the pond. Browse pond building supplies for underlay, liner, hose and related construction components.

Frequently asked questions

Why use flexible pond edging?

It creates a stable, controllable perimeter and follows natural curves more accurately than improvised timber.

How do I level the edge?

Use a laser or water level and check the complete perimeter repeatedly during fixing.

What is a capillary break?

It separates wet pond materials from surrounding soil or turf so water is not wicked out of the pond.

Which spike length do I need?

Choose according to the compatible system, soil conditions and required support; follow Oase guidance.

Can I bend the edging around curves?

Yes within its design limits. Use adequate fixing through tighter curves.

Does the liner go over the edging?

Follow the system detail for underlay, liner and finished coping so no sharp element contacts the liner incorrectly.

Can I use it for planting shelves?

It may help define edges, but shelves and retained soil need their own stable structural design.

Why is my pond losing water at one side?

A low edge, liner fold or capillary action may be allowing water to escape.