Top 9 Pond Liner Underlayment – Water Garden & Pond Liners & Seals

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1. Beckett Corporation

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Black, Beckett Corporation 6 Foot by 12 Foot Pre-Cut Pond Liner Underlayment

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Beckett Corporation #ad - Adds an additional layer of support for your outdoor water feature. Size: this 6'x12' precut piece is easy to place for any small pond. Protect your liner: the underlay protects the pond liner from being punctured by rocks or other debris, as well as damage from rodents. Polypropylene material: sturdy yet flexible cloth is easy to place within your pond area. Covers up to 72 sq ft.
BrandBeckett Corporation #ad
ManufacturerBeckett Corporation #ad
Height6 Inches
Length33.5 Inches
Weight2.4 Pounds
Width6 Inches
Part Number7202510
Model7202510

2. UNDERGUARD

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UNDERGUARD 20 ft. x 25 ft Geotextile Underlayment

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UNDERGUARD #ad - Superior drainage characteristics versus woven geotextile fabric. Needle punched nonwoven polypropylene geotextile fabric with a random, three-dimensional pore structure and a uniform, felt-like consistency.

Enhances soil stability and controls erosion while providing a stable and lasting foundation for water features, retaining walls, trenches, and planting projects. Made in the usa & backed by a 20-year limited manufacturers’ Warranty! Made from sun and chemical resistant 100% virgin polypropylene & is 100% recyclable. High tensile-strength nonwoven polypropylene fabric is easy to use. Virtually indestructible; unaffected by hydrocarbons & freeze-thaw cycles while diffusing gas and fluid build up.
BrandUNDERGUARD #ad
ManufacturerAnjon Manufacturing #ad
Weight13 Pounds
Part NumberUG20X25
ModelUG20X25

3. Custom Pro

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Custom Pro Heavy Duty Pond UNDERLAYMENT for Liner Protection, 15x20 Feet / 300 Square Foot Lightweight Fabric Barrier Mat Protects EPDM, Tears and Animals, Plastic and PVC Liners from Holes

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Custom Pro #ad - Safe for fish and plants: Koi, other kinds of fish and aquatic plants are safe with this underlayment. Use it for ponds, water gardens and other waterscapes, including those with fish and aquatic plants. Without underlayment's protection, pond liner may be torn by animals clawing through the soil below a pond.

Simply place the underlayment between the ground and your pond liner. Underlayment increases a pond liner's puncture resistance by 415 percent compared to pond liner used alone. 415% more puncture resistance: custom pro heavy duty pond underlayment for liner protection provides excellent protection and padding for pond liner. It measures 15 feet x 20 feet, nonwoven, or 300 square feet.

Protection from sharp objects: this strong underlayment mat safeguards your pond liner against tears caused by sharp rocks, glass and other debris on the ground's surface. Easy to use for all ponds: lightweight and simple to install, this underlayment is effective for all kinds of water features. This black underlayment is thick, 60 mil, geotextile fabric. Protection from animals: the hefty underlayment fabric also guards against burrowing animals.
BrandCustom Pro #ad
ManufacturerCustom Pro #ad
Height1.2 Inches
Length180 Inches
Width240 Inches

4. GROWNEER

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Streams Fountains and Water Gardens, GROWNEER 13 x 20 Feet 22 Mil Pond Liner LLPDE Pond Skins for Fish Ponds

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GROWNEER #ad - Safety -- this pond liner measuring 13' x 20', is made of llDPE material which is safe for your fish and plant life. Durable -- 22 mil thickness provides superior durability while maintaining the ability to stretch.

Widely used -- the pond liner is a perfect choice for water gardens, fish ponds and backyard waterfalls. The auxiliary materials dissolved in the production meet the safety level of food packaging. It can be exposed to sun, rocks, puncture for ensuring many years of continued use. It is ideal for ponds of all sizes with steep or gentle sloping sides, tight corners, contours and shelving. Flexible -- the good flexibility makes it easy to fold and bend to your contour / outline of pond's rocks and waterfalls.

Finished pond length, width, and depth can be tailored to conform to a variety of irregular surfaces and specific size. Textured surface -- this pond liner has a textured surface which can promote the growth of living creature, providing the right foundation of your pond for an environmentally balanced habitat.
BrandGROWNEER #ad
ManufacturerGROWNEER #ad
Part NumberPONDLINER-22MIL

5. Aquascape

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Aquascape 85009 EPDM 45 Mil Rubber Liner for Pond, PRO Grade, Black, Waterfall and Water Features

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Aquascape #ad - Great for use in ponds, Pondless Waterfalls, and other water features; safe for fish and plants. 45 mil thickness provides superior durability while maintaining the ability to stretch. Measures 8 x 10 Feet. Exceptional resistance to solar UV, ozone, and oxidation.
BrandAquascape #ad
ManufacturerAquascape Designs, Inc #ad
Height12.5 Inches
Length12 Inches
Weight23.5 Pounds
Width12 Inches
Part Number85009
Model85009

6. Atlantic Water Gardens

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12 by 12-Feet, Atlantic PU1212 Pond Underlayment

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Atlantic Water Gardens #ad - Prevents damage to the rubber liner from roots, rocks and other debris. Provides a buffer between the ground and your rubber liner. Non-woven polypropylene - 4 oz. 12' x 12' sheet. Weight.
BrandAtlantic Water Gardens #ad
ManufacturerAtlantic Water Gardens #ad
Height2 Inches
Length39 Inches
Weight4 Pounds
Width13 Inches
Part NumberPU1212
ModelPU1212

7. UNDERGUARD

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UNDERGUARD 15 ft. x 25 ft Geotextile Underlayment

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UNDERGUARD #ad - Made in the usa & backed by a 20-year limited manufacturers’ Warranty! Made from sun and chemical resistant 100% virgin polypropylene & is 100% recyclable.

High tensile-strength nonwoven polypropylene fabric is easy to use. Superior drainage characteristics versus woven geotextile fabric. Enhances soil stability and controls erosion while providing a stable and lasting foundation for water features, retaining walls, trenches, and planting projects. Virtually indestructible; unaffected by hydrocarbons & freeze-thaw cycles while diffusing gas and fluid build up. Needle punched nonwoven polypropylene geotextile fabric with a random, three-dimensional pore structure and a uniform, felt-like consistency.
BrandUNDERGUARD #ad
ManufacturerAnjon Manufacturing #ad
Weight10 Pounds
Part NumberUG15X25
ModelUG15X25

8. American Pond

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10 x 15 Pond Underlayment and Landscape Fabric

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American Pond #ad - Can be used as a heavy duty weed barrier for landscaping. Uses for underlayment: pond installation, landscaping, drainage fabric, erosion control and more. Fabric has extreme tolerance of Hydrocarbons, Freeze-thaws cycles, mildew and rot. Can be used as separation fabric when paving, and gravel applications. This 6oz underlayment increases puncture resistance of 45mil pond liner by 400%.
BrandAmerican Pond #ad
ManufacturerAmerican Pond #ad
Weight6 Pounds
ModelAPUNDER6-10x15

9. LifeGuard Pond Liner

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Anjon Lifeguard 15 ft. x 15 ft. 45 Mil EPDM Pond Liner and Underlayment Combo

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LifeGuard Pond Liner #ad - Resists uv deterioration and contains no plasticizers which become brittle and cause cracks and splits. Ships Ground Package. Lifeguard pond liner is virtually indestructible; unaffected by hydrocarbons, rot, mildew, and freeze-thaw cycles!.

Anjon manufacturing's epdm lifeguard pond liner comes with a Standard 25-Year Manufacturer's Warranty; but, Anjon Manufacturing's EPDM LifeGuard Pond Liner is warrantied for LIFE! Lifeguard pond liner is certified by guardian systems, when properly installed with underguard underlayment nonwoven geotextile, Inc. Anjon manufacturing's epdm lifeguard pond liner is marketed in hundreds of pond kits, and installed in thousands of water features, worldwide.

74 lbs. Professionals trust their reputation to lifeguard pond liner! Durable and puncture resistant! lifeguard pond liner is extremely versatile and is used in a wide variety of applications, Retention and Koi Ponds, including: Pondless Waterfalls, Skimmers and Waterfalls, and Fish Hatcheries. Readily accepts pipe and hose penetration without leaks, and can be easily seamed. And easily attaches to filtering waterfalls and skimmers.
BrandLifeGuard Pond Liner #ad
ManufacturerAnjon Manufacturing #ad
Height12 Inches
Length20 Inches
Weight74 Pounds
Width12 Inches
Part NumberCLGUG15X15
ModelCLGUG15X15