Gave up on trying to hem the sil on my new tarp and decided to try finishing the edges with 1" grosgrain. That's going pretty good but I ran out after just 2 sides. Searched 3 JoAnn's, Hobby Lobby, Michaels crafts and a couple Wal-Marts. They all have 7/8, 1-1/4 and 1-1/2" but no one has 1". What's the deal? Of course Scott at Backwoods Daydreamer has my back so it's just a temporary setback. Sure would like to finish this thing! BTW, there's more than 36 feet of grosgrain for a blackbird cat tarp, more if you put it down the center seam.