Best Pond Liners: Buying Guide

When building a pond, there are a couple of different things that you need. Each one of these different elements is essential, and without one of them, the entire pond is put in a difficult position, which means that the pond may not be very sturdy or stable, and is rather vulnerable.

You need many things when building a pond. Water and a filter, as well as bricks and rocks, and other materials to build the walls of the pond. But, one of the most important elements that you need is – you guessed it – pond liner. Pond liner is essential when building a pond, and without pond liner, you will have a much more difficult time building a pond, while also having a much more difficult time ensuring that the pond remains strong, and that it doesn’t degrade or fall apart rather quickly.

Finding the best pond liner can be a rather difficult process, if you are unfamiliar with a few things. Namely, what pond liner is – not the loose definition you will find in most places; a more specific and concrete definition – as well as what it does, the specific benefits that it gives you, and what to think about and look for, when searching for the very best pond liner.

In this buying guide, you are going to learn about all of those things. We’re going to be taking an in-depth look at what pond liner is, what it does, and how you can find the best pond liner for your pond so that you can build the best pond possible!

What, Exactly, Is Pond Liner?

The process of building a pond is quite simple, and one of the first things you will have to do is find a place where you are going to put that pond. This is easy enough. Then, after that, you are going to have to dig into that ground, and pull out all of the dirt. That space, which was once filled with a bunch of dirt, is where the pond is going to go. But, here’s the thing, before you can start building the pond, you have to do something.

You have to lay down the pond liner. Without doing this, your pond is not going to have the sturdiest foundation to lay itself on, and it will have a much more difficult time retaining the water that is in the pond.

Here’s the thing about pond liner, without it, the water is simply enclosed in this space in the ground, and it’s very easy for that water to simply flow back into the dirt and the ground, instead of staying within the pond. By using a pond liner, you can keep all of that water in the pond, preventing it from flowing into the dirt.

Pond liner is a type of fabric that is waterproof. Water can’t flow through it, or damage the fabric. It is designed to keep the water in your pond within the pond, and along with that. It can also keep everything that is within the pond – such as plants and fish – sturdy and stationary, so that they aren’t subject to the fluctuation of the water, and the possibility of that water flowing out of the pond and into the ground.

Many people are tempted not to buy a pond liner, but to do so would be a very foolish mistake. Don’t discount the step of buying and setting up a good, strong pond liner that can keep all of the water in your pond in that single spot. A good pond liner is essential.

What Are The Benefits And Advantages Of Using A Good Pond Liner?

First and foremost, a good pond liner keeps all of the water that is in your pond, within your pond. It ensures that this water doesn’t flow out of your pond, and that is very important. If the water isn’t able to stay within the pond, then this damages the plants and fish living within the pond, as well as the pond itself.

The other advantage has to do with the fact that plants and fish are sensitive to fluctuations in things like water temperature and depth, and if one of those variables changes, even just slightly, this can disrupt everything that is within that pond. So, with a good pond liner, you ensure that your plants and fish remain strong and healthy.

Ultimately, those are the two main advantages. Without a pond liner, though, your pond is not going to be very strong or stable, and it’s going to be difficult to keep things within the pond, and to keep the ecosystem that you have strong and healthy.

What Do I Need To Look For And Consider?

In this section of the buying guide, we’re going to be looking at some of the main things that you need to look for, and consider when it comes to the pond liner that you end up buying. There are a lot of choices out there, and it can be pretty tricky to find the best one if you are unfamiliar with the different factors that you need to be thinking about.

Pond liners are simple, and they aren’t particularly complex, but it is still very important that you consider these things. If you don’t, it will be harder to find the pond liner that is right for you.

How Much Pond Liner Do You Need?

Let’s start with the most important consideration of them all: how much pond liner you need to buy. If you don’t know this, then it’s going to be difficult to find the pond liner that is right for you.

When you measure the space that you will be putting the pond liner – and, in turn, your pond – in, you then need to consider a few other things related to the depth of the pond, among other variables. More specifically, there is a very basic set of equations that you can use to calculate the exact amount of pond liner that you need.

Measure the space where the pond will go, and then take the length, and then add the depth of the pond, times the depth of the pond by two, and then add two to that measurement. From that, you now have the length of pond liner that you need.

For the width, take the width that you have measured, add the depth of the pond and times that by two, and then add two.

Using those two equations, you will learn how much pond liner you need, in terms of length and width. By doing this, you will make the entire process significantly easier, because there’s nothing more annoying than discovering that the pond liner you bought is insufficient for the pond that you need to cover with that pond liner!

Will The Pond Liner Be Exposed To The Sun?

If you live in an area where there is a lot of sun, and your pond liner will be exposed, even just a little bit, to the sun, then you need to buy a pond liner that has some sort of UV protection.

Without this UV protection, when the pond liner is exposed to the sun, it breaks down the fabric, and this can affect the rest of the pond liner, damaging its structural integrity.

Most of the time, though, this UV protection isn’t important, because the pond liner will be covered by the rocks that are at the bottom of the pond. But, in some cases, the pond liner will be exposed, so UV protection is important in those cases.

How Flexible Is The Pond Liner?

Most pond liners are flexible since they have to adapt to the space that they are going in. But, some of them are quite rigid, so that they can be extra strong and durable.

Generally speaking, it is wise to invest in a flexible pond liner, because this gives you more freedom when laying it down and setting up the pond. Unless you have a very specific set up for the pond liner to go in, that is, in of itself, quite rigid, it is best to purchase a flexible pond liner.

Is The Pond Liner Conducive To The Growth Of Plants And Fish?

If you intend to grow plants, and to have lots of fish living in your pond, then it would be wise to invest in a pond liner that has been designed to accommodate those things. And, these pond liners, while not as common as others, are still quite common.

You can find this information on the store page, but you should also look for pond liners that are flexible and made of strong plastic, because these will ensure that your fish are living in a healthy environment, and that the plastic won’t chip away, spilling the chemicals into the water.


If you are building a pond, then you need a pond liner. Pond liner is essential, and to find the best pond liner for your pond, and the needs that your pond has, you can ask the questions we’ve provided, and you will have no problems!