I think it depends on what YOU want to call it. I have a designated sewing room and that's just what I call it my sewing room. It's not that big, about a 12 X 12, with a sewing desk, a cutting table, cube bookcases and shelved ones too, and another sewing desk with my mega quilter on it. It's very compact. My son this morning called it my mechanical room, I guess due to all of the machines. I guess if you go by Fons and Porter it's a studio because it's always setup and ready to sew. I think it's like most things in life; it depends on the person. Like some say dinner and others say supper, etc. Some think a studio is large but then when you look at studio apartments they aren't very large at all.