Chained 318 +2. (multiple of 6 +2) I think it would fit a king size bed! Queen size with a nice overhang was what I wanted but this is way too wide. So I put the stripe vertically and folded down the top.
I also used too big a hook for this yarn. The blanket is super stretchy and I think a smaller hook would have been better. Live and learn!
Bought 5 skeins of each color. Had to buy a 6th skein of raspberry to finish the border.