Uline stocks a wide selection of 6 mil reinforced plastic sheeting and reinforced poly sheeting. Order by 6 pm for same day shipping. Huge Catalog! Over 36,000 products in stock. 11 Locations across USA, Canada and Mexico for fast delivery of reinforced plastic sheeting. Find a large selection of Plastic Sheeting in the Home Improvement department at low Fleet Farm prices. ... 4 MIL Poly Plastic Sheeting - 8 Ft x 50 Ft Clear. Warp's 10 MIL plastic sheeting is widely used for crawl space encapsulation and building foundation moisture barriers. Colors available: Black, Clear, White, Yellow. Eagle String reinforced poly sheeting is made from high strength polyethylene film manufactured with a tear resistant internal scrim reinforcement. Reinforced poly is used for various applications including construction enclosures, temporary containment, abatement covers, ground covers and underlayment.