40ft x 60ft High VisibilityYellow Tarp Size 3.3 oz per square yard, 7-8 Mil thickness Waterproof - Mildew, Tear, and Acid Resistant Hems Reinforced with Poly Twine Grommets Spaced Approximately Every 36 Inches and at the Corners This Tarp is Listed at Cut Size. It will measure approximately 3-5% or 6 Inches (depending on size of tarp)