The line was 269 feet long, and there was 3 feet, 4 inches left hanging from the can's nozzle. I sampled 2 nine-inch sections along the wall, and found that each contained about 5 feet of over-lapping string (58 inches and 51 inches). I divided the 269 feet into 358 9" sections, averaged the actual string sample at 54.5" per section, multiplied to get 1629 feet on the wall, and added the hanging string to get a total: 1,632 feet of string. That is about a third of a mile!
