Wish I could help you more. Back in the early 90's I bought about 2000' in 6'x100'rolls for Our Ostrich pens. All I can remember is the company mostly made shade cloth for automotive dealerships (hail cloth). consequently, the material I had was very strong and lasted over 10 years, but it was hung on 6' fence, not overhead. It took the abuse from the Male Ostriches in stride, (they fight between the fences, hence the "cloth")
If it was me, I would ordered it pre-cut (cut to fit) with the grommets already set in at least a double fold edge, I would not want to have to add grommets no matter how easy they claim. Mine was Black, but for overhead I would look for a Blue or other light color, may add less wear from the sun.