Kotap 20-ft x 30-ft Heavy-Duty 12 by 12 Cross Weave 8-mil Reversible Green/Silver Poly Tarp, Item: TGS-2030,Kotap America,TGS-2030" /> FINISHED SIZE: 19-Feet 4-Inch by 29-Feet 6-Inch More durable and longer-lasting than regular spec and competing tarps: 12 by 12 Weave (8-mil thick) Strong UV Protection: Silver side reflects UV rays, offering more sun protection Strong Grommet Applications: Grommets spaced every 18-Inch and reinforced plastic corner bars Rot and Shrink Proof