Mine is 9'x9' ... very, very tiny ... and DH and I both share the space for our computers ... and there's not a blank wall in the room ... and I have multiple hobbies (not just sewing/quilting). Needless to say, "cramped" is an understatement!
I had my quilting frame set up in one of the bedrooms, but we took it down a few weeks ago since we're planning to put the house up for sale soon. Hopefully when we buy a new place, I'll be able to get a gigantic craft room or a "she shed".