I have LOTS of flat surfaces in my sewing room and they are all loaded up with fabric! I do think I need more fabric though! I am planning on getting a countertop that is 8 feet long and mounting it on one wall and using it for 2 sewing stations and for the serger. Then I can get rid of the table that I am using now along with a desk, THEN I can get Grandma's treadle in there. My counter top will only be 24" wide.
I have a cutting table that is fully open, it is 32 x 60.