Ozark Trail Heavy-Duty Tarp, 10' x 20', Material PE - Walmart.com
Amazon.com: Durable, Heavy Duty & Waterproof 20' x 20' All Purpose 5 MIL Tarp by Dry Gear : Tools & Home Improvement
Amazon.com: Heavy Duty Poly Tarp - 20' x 20' - 10 Mil Thick Waterproof, UV Blocking Protective Cover - Reversible Silver and Black - Laminated Coating - Grommets - by Xpose Safety : Tools & Home Improvement
BOEN 20-ft x 20-ft Blue Commercial Polyethylene 5-mil Tarp in the Tarps department at Lowes.com
Amazon.com: 20' x 20' Super Heavy Duty 16 Mil Brown Poly Tarp Cover - Thick Waterproof, UV Resistant, Rip and Tear Proof Tarpaulin with Grommets and Reinforced Edges - by Xpose Safety :
20' x 20' Heavy Duty Waterproof PVC Vinyl Tarp - Gray