My old 5x7 Elwood had to sit on the floor because of a low ceiling. It worked well enough for occasional printing. My present enlargers sit on a table my great-grandfather probably build a hundred years ago. A wall-mounted timer lets me switch it on with no vibration. Being able to sit at the enlarger is a luxury. In college when a session might be for a hundred or more prints, my enlarger sat on a chest-high set of drawers. That was good for production, but not for comfort. Fotch's suggestion of a stand with a removable section is great when one needs to occasionally make big enlargements in a small darkroom.