20 Mil Drainage Ditch Liner | Polyethylene Waterproof Liner | USA Made
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Heavy-Duty Drainage Ditch Liner
Create a durable, waterproof barrier beneath drainage ditches, swales, and rock-lined channels with Sandbaggy's 20 Mil Drainage Ditch Liner.
Made from heavy-duty polyethylene, it helps prevent water from soaking into the soil while resisting punctures, tears, and rot. The 20 ft wide design provides broad coverage with fewer seams.
For heavy-duty drainage applications, use two 20 mil layers for 40 mil of combined material thickness.
- Each layer is 20 mil thick.
- Use two layers for drainage applications to achieve 40 mil combined thickness.
- Each roll contains one 20 mil layer; two rolls are needed for a two-layer installation.
- Two layers provide 40 mil combined thickness, not a single 40 mil membrane.
- Remove sharp rocks, roots, and debris before installation to help prevent punctures.
Specs
- Country of Origin: USA
- Material: Virgin Polyethylene (Plastic)
- Thickness: 20 Mil per layer
- Recommended Drainage Installation: 2 layers
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Size
- 20 ft x 10 ft (20.9 lbs per roll)
- 20 ft x 20 ft (41.8 lbs per roll)
- 20 ft x 50 ft (104.5 lbs per roll)
- 20 ft x 100 ft (209 lbs per roll)
- UV Inhibitor: 200 hours
- Waterproof: Yes
- Rot Proof: Yes
- Color: Black
Features
- Heavy-Duty 20 Mil Polyethylene: Creates a durable, waterproof barrier between drainage rock and soil.
- Built for Drainage: Ideal for rock-lined ditches, swales, trenches, and landscape drainage channels.
- Two-Layer Protection: Use two 20 mil layers for 40 mil of combined material thickness.
- Extra-Wide 20 ft Coverage: Covers larger areas with fewer seams and overlaps.
- Durable & Resistant: Designed to resist punctures, tears, rot, and many common chemicals.
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Made in the USA: Manufactured in the United States for dependable quality.
FAQs
How thick is the waterproof liner?
Each layer is 20 mil thick. Use two layers for 40 mil of combined material thickness.
Do I need two rolls?
Yes, for the recommended two-layer installation. Each roll contains one 20 mil layer.
Can it be installed under rocks or gravel?
Yes. Install beneath drainage rock or gravel after removing sharp objects that could cause punctures.
Can I use this as a residential drainage ditch liner?
Yes. It can be used to line residential drainage ditches, swales, and rock-lined channels to help prevent water from soaking into the soil below.
Can this liner be used for pond lining?
This polyethylene liner can provide a waterproof barrier, but it is primarily designed for drainage applications. For pond lining, make sure the material is suitable for your specific pond design and installation requirements.
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