There are so many people on this board with sooo much space....envy !
The whole of my sewing room is just 8"x11" and even that has a chunk out for the stair bulk head....so we had to think practically....Like others bought 3 units from ikea but the work surface is just laid on top and not secured. Usually it is up against the wall but if I am doing a big project just need to pull the cupboards out out slightly, put the worksurface back on and I can get all the way around.
Biggest thing for me was storage....love my room though