Handcock of Paducah. They list the number of yards of fabric they have. If you order what is on the bolt, you get what is on the bolt. They also do not charge for shipping if you order over $70. I just got a bolt plus of 12 dollar a yard for 3.99 a yard as it was on sale for 4.99 and the more you ordered the less it was. So I got 15 yards of a dark taupe flannel which I am going to use for backings.
I think there is 14-15 yards of fabric on a bolt.