My sewing studio is about 20x20, but none of my stash is housed in there. It's in my smallest bedroom, which used to be my sewing room. That room is 11x12 and it is full to the brim. I keep garment fabric in the closet and the quilting fabric in clear plastic tubs stack up three to four high. I am very organized and can pretty much tell by looking what is in each tub. Oh and I also like to work with recycled wool so it's lined up against the outside wall. There are 7 tubs of wool.