The Pond Liner

There are 3 types of Pond Liner, all great quality and unique for different budgets and applications:

  1. LLDPE Pond Liner
  2. PVC Pond Liner
  3. EPDM Pond Liner

We would suggest using the LLDPE Pond Liner for any pond lining applications.

A pond liner is by far the best choice for most ponds where you want to create something unique and to suit your garden design. Just make sure you work out the size you need without making a mistake.

Even though you can easily use pond liner to make any shape of pond it is always best to stick with designs that are not too elaborate. In general try to avoid sharp edges and too many indents.

See how to size the liner below.

Inquire Here

3 + 10 =

Pond Liner Size

The Best Pond Liner In South Africa

The best type of pond liner material available in South Africa is made from polyethylene and is the same material used to construct large dams and golf course lakes. We have extreme UV conditions in South Africa and choice of pond liner material is critical.

When you’ve decided where to site your pond (full sun is always preferred especially if you intend to keep water plants) the next step is to create your shape using a hose pipe or ribbon. Record the maximum length and maximum width and decide upon the depth you need … 1.0 to 1.2 metres (3 to 4 feet) is a good depth unless you’re building a large pond and intend to keep koi then 1.8 metres (6 feet) is a better option. With this information you can size your liner.

Think About Depths and Planting Shelves

To see how liner is installed in a pond.  Sooner or later you will want to put some pond plants into the water. Some are best suited to water of about 0.9 metres (3 feet) depth such as water lilies while other prefer only 15 cms (6 inches) of water. So build in some shelves at different levels and also consider creating a bog area around the edges of the pond.

Use the method outlined below to decide what size liner you need to buy to fit your desired pond size (all pond liners comes in square or rectangular form).

Pond Liner Digging

The width of the liner

Gentle Reminder: A pond has depth and the depth applies to two sides wide and 2 sides long. This means if a pond is to be 1 metre deep then you will need to allow 2 x 1 metre for the width direction and also 2 x 1 metres for the length direction…

Take a look at the sketch again … width is defined as the MAXIMUM width. So take your measurement at the widest point of the pond. The liner must overlap on both sides of the pond by at the very least 50 cms per side. The final material used for edging (stones, wood, brick surround etc) will be placed on top of this overhang. You must then also add the MAXIMUM depth and the MAXIMUM depth again. For example if you want a pond 4 metres wide and 1 metre maximum depth the width of liner will be 4+1+1+0.5+0.5 (for edging) = 7.0 metres.

Length of liner required

Pond LinersJust repeat the calculation as for the width. For example if you want the above pond to be 6 metres long then the length of the liner must be 6+1+1+0.5+0.5 (for edging) = 9.0 metres.

The final sheet size you will need to buy is then 7 metres by 9 metres.

It’s probable that some of your pond liner will be wasted but don’t throw it away. It will come in handy if you want to construct a waterfall

Landscape ponds with flexible pond liners to construct wildlife pools.

When calculating the size of a pond liner you need, there are many variables you need to take into account please contact us so we can help you get the perfect fit pond liner. Lead time for Pond Liners is 3 days as we have to process your order, size and cut the liner and then get it ready for collection or delivery. We also have A4 size patches available for any pond liner.


It is impossible to install a liner pond without pleats. Don’t worry … you won’t notice after a short time.

You must install a felt like material underneath the floor of the liner to prevent sharp stones coming into direct contact with the liner. We suggest you use the best material available (as used in large installations). It is called Bidim and is also available from us at a cost. You can use old velt as an alternative.

Need Some Help?