Mine is only about 3 feet I think. It takes up just a bit more than one bookshelf, and it's all packed into holders with no space at all. So maybe 3.5 feet.
All I know is that my LSS got the Prima Craftsman (well, some of it) and I had to go get 2 of each. Plus the Birdsong paper pad has been calling my name so I went ahead and got that too.