Strange....

Hmm...I'm a little nervous about this crochet pattern I bought, the Woodsmans Wife shawl. As I was reading the materials needed, it says 160 yards, being 5 skeins of a super bulky homespun yarn, but there's like 140 yards on one skein...so it doesn't make sense. And then I had to do almost twice as many chain stitches for the foundation row, to match the 72" of length the diagram says it needs. Hopefully there's no other issues with the pattern...