Orgill Poly-Cover 6 mil. Black Plastic Sheeting 20 ft. x 100 ft. Roll. The 6 Mil Plastic 20 ft. x 100 ft. Liner is a versatile and durable solution for a wide range of applications. Whether you need to protect your garden from weeds or create a moisture barrier in your crawl space, this liner has got you covered. It is perfect for landscaping projects, pond lining, and even as a temporary cover for construction sites. Made from high-quality materials, this liner offers exceptional strength and tear resistance, ensuring long-lasting performance. Its generous size provides ample coverage, allowing you to tackle large projects with ease. The 6 Mil Plastic Liner is a reliable and practical choice for all your landscaping needs.