I don't know how I ever managed without mine - I just wish it were bigger! It's around 5' x 6' and it covers an entire wall of my (tiny!) sewing room, down to the radiator. I have to stand on a step ladder to reach the top. We just made a frame out of some 2" x 1" timber and staple gunned some extra wide flannel over it. It hangs on the wall on two square hooks so can be lifted down easily if I want to put it somewhere to stand back and look from a distance - my room is so narrow that I can only get about 3' away, if I sit on my desk with my head in the bookshelves!
What I will do differently (when we've finished converting the attic and I move into my new, much larger room!Hooray!) is put something behind the flannel like some fibre board so it doesn't flap about when I'm juggling layouts.