I haven't looked at the actual shelf upstairs, but this one at Walmart looks like it.
http://www.walmart.com/ip/Mainstays-...Tower/16451698
It only cost about $28.00 too! It's just under 20" wide, 9.5" deep and 49" tall.
My daughter put 3 stacks of fat quarters on each shelf. That leaves a little wiggle room for putting a few fat quarters on edge if there were a few too many to stack.