Before I got in to business making enlargements etc., someone gave me a roll of 42" paper. My darkroom was 48 x 72. I could turn my enlarger head horizontal and enlarge on to a wall outside the door. I made 30 x 40 prints and developed them by sticking the print to a wet tile wall above the bath tub. I developed, stopped, and fixed prints with sponges and washed the prints in the bath tub. Really easy and no real cost.