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Have questions? Give us a call: 323-433-1540
Have questions? Give us a call: 323-433-1540

Pond Underlayment

35 reviews

Ships out within 2 business daysThere may be some delays in delivery due to COVID-19, rest assured, your order is on it's way!

Pond liners are heavy, but we guarantee the best shipping rates available.

Product Weighs: 3.0 lb

Notify me when back in stock

Add extra protection and peace of mind to your pond, your investment.

  • Increases pond liner life and is quick and easy to install.
  • Protects from sharp objects and prevents ground under liner from over-stretching. 
  • Made from 100% polypropylene non-woven material, will not mildew and is resistant to damage from insects and rodents. 
  • Material weight: 7oz


*Width is always 15ft wide. Pieces can be overlapped and come cut to help with placing. 

How to Determine the Size Underlayment You Should Buy:

1.) Determine the total sq ft of your pond liner: Example 20'x30' = 600 sq ft

2.) Divide the total sq ft of your liner by 15 (this is the width of the rolls they come on): Example 600 sq ft / 15 = 40 

Example: You would need to purchase a 15'x40' underlayment 

Customer Reviews
5.0 Based on 35 Reviews
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Allen M.
United States United States
Trench liner.

Easy pay, fast delivery.

deb k.
United States United States

Fabulous product! Exactly what they advertised. Great quality. Priced right. Definitely would use them again.

Donald M.
United States United States
Great support, too.

First delivery was handled poorly in shipment. A quick phone call to you resolved it and a new shipment was recieved in just a few days. Not your fault but well handled. I'm still digging my hole. Plan on using my underlayment and liner soon.

Perry G.
United States United States
Pond liner

Was easy to install

Christopher K.
United States United States
Underlayment is exactly what i needed

came super fast and is strong and durable. good price and worked very well.