Pond liner calculator
Work out what size of liner your pond needs.
Uses only the sizes you enter.
Result
You need a liner 4.8 m by 3.8 m: 18.24 square metres.
square metres of liner
| Liner length | 4.8 m |
|---|---|
| Liner width | 3.8 m |
Show the workings
| Step | Sum | Answer |
|---|---|---|
| Liner length | 3 m + 2 × 0.6 m deep + 2 × 0.3 m overlap | 4.8 m |
| Liner width | 2 m + 2 × 0.6 m deep + 2 × 0.3 m overlap | 3.8 m |
| Liner area | 4.8 m × 3.8 m | 18.24 m² |
What this leaves out or assumes
- Uses the deepest point all over, so shelves are covered.
Where the figures come from
This sum uses only the numbers you entered.
How to work out a pond liner
The liner has to go down one side, across the bottom and up the other side, then tuck in at the top. So its length is the pond's length plus twice the deepest point, plus an overlap at each end. The width works the same way.
For a pond 3 m by 2 m and 0.6 m deep with 0.3 m overlaps: 3 + 1.2 + 0.6 = 4.8 m long, and 2 + 1.2 + 0.6 = 3.8 m wide.
To see how much water the pond holds, use the volume calculator and convert litres to gallons.