Pond Liner Underlayment - 10 x 15 Feet - Non Woven Geotextile Landscaping Fabric with 15 U-Pin Garden Staples - Perfect Padding for Fish Koi and Preformed Ponds Fountains Waterfalls

Very minimal thickness . This should not be an issue if you have a previous molded liner or SMOOTH excavated EARTH depression. I DOUBLED mine over because of MORE THAN enough material for a 7 x 4 x 2 ft. DEEP pond. Easy too, as felt like, NON-Woven underlayment material molds itself to surrounding pond depression with some effort.

This underpayment went on easy and appears to be good quality. I like the inclusion of the ground spikes to hold it in place.

After days of trying to decide whether to go with this more-expensive, but better-described product, verses a cheaper (questionable) alternative, I decided on this item. It was delivered promptly and exactly as advertised. It was easy to manipulate and lay for the pond underlayment and, much to my surprise, nearly impossible to cut with a new utility blade (which is exactly what you want with a protective underlayment for pond liners). As a result of its exceptional durability, we decided to simply fold the excess edges for our layout under itself. The product, though more expensive than its competitors, has given me peace of mind for my ponds longevity. I highly recommend this pond underlayment.

This is a very good under liner and the hook are really needed. I put this down by myself, so the hooks made it very easy when I put the liner in place.

Purchased this product for our pond project. Material was easy to work with and provided a nice base layer for our pond liner. Very pleased with the results!

Bought this for under our pond liner. Our soil is rocky with many roots so I wanted an extra layer of protection. This is just thick enough and is easy to work with. (Photo is of our pond almost finished.)

thick enough for a Underlayment liner.

Strong liner. We have tried several and this one has held up great! No water loss.