USA Pond Products’ – 12×15 Gray Pond Liner with Black Printed Pebble Design-12’W x 15’L (3.66m x 4.57m) in 25-mil Graystone PVC (0.63mm)-Fish/Plant Friendly for Koi Ponds, Streams & Water Gardens

12 Feet Wide x 15 Feet Long Flat Sheet Pond Liner in 25-mil Graystone PVC. ** THIS LISTING IS FOR A FLAT SHEET POND LINER.** What does that mean? That means that the liner is made from a flexible material that may be designed to be draped into your pond, tucking and folding it into position. IMPORTANT – You wish to have to account for your pond’s width, length and depth when choosing the right kind liner. Measure your pond by adding the following: Overlap + Depth + Width + Depth + Overlap to find the absolute minimum liner width you require and then repeat the process for the length of your pond. Tip – You should definitely order a liner a minimum of moderately larger than you calculate (you’ll be able to all the time retain the extra for future use). Note – All of our liners are made-to-order and most sizes do require us to weld a couple of panels together but rest assured, our Quality Team checks every weld before we package the finished product. As with all of our products, these pond liners are proudly made in america!