Gather the sheets you will be using. Wash and dry them as you normally would. Wash sheets whether they are new or old.
Find the center of the sheet that you will attached to the center of the ceiling or beam. If you are using multiple sheets, gather the corners of each sheet that you will attach to the ceiling.
Staple the center of the sheet -- or the corners of several sheets that will make the center -- to the ceiling or beam with a staple gun.
Stretch the sheet across the entire ceiling area and secure the sheet with staples at each corner. Add staples every six inches along the ends of the sheet. Alternatively, let the single sheet or multiple sheets drape in the middle instead of stretching the fabric flat for a dramatic look.