Wood Column Rotting

If its a round column or something decorative you may be able to cut some of the bottom off and sit it back down on a pressure treated platform. You will need to jack up the roof about a half inch to remove the column. As suggested above, use a jack. even a car floor jack will work. Screw a 2 x 4 diagonally across the ceiling about 6 inches behind the column, from the front to the side. Then jack it up slip out the column and do your repairs