If you have chosen to install your pond with foil, you can start with the steps to apply the pond foil correctly. Read more.
If you have chosen to install your pond with foil, you can start with the steps to apply the pond foil correctly. To finally choose a good size, you can use the rule of thumb to calculate pond liner in the image below.
PVC pond liner - thickness 0.5 mm - color black.
Pond liner in package. Cut to size and sealed. PVC pond liner, thickness 0.5 mm.