I purchased 6 - 5" x 40 charm packs and started to make 9" squares. I have finished 15 squares and cut them up into 4 parts as suggested. Each cut square measures 7". I am trying to make a single quilt. When I laid the cut squares out, 10 wide per row, I was only able to make a little more than 4 rows. I still have about 120 5" squares left, but when I measure it out it does not give me enough to make a single quilt.

What am I doing wrong?

Just using 5" squares in a rows 14 x 14, would give me enough to make a single. Either I don't see the forest of the trees, or what is going on, but I am not getting anywhere.

Can someone lead me out of the woods?