Begin by hanging the 1/2 finished drywall, wallboard, blueboard, sheetrock, or plasterboard on the walls and ceilings. Some cities may only have 5/8 or double 5/8 boards for the ceiling. If there are any apartments above, you must screw the plasterboard on the ceiling with at least 5 to 6 screws in each strip. Only 4 to 5 screws per strip are necessary for the walls. Hang the drywall or plasterboard on the ceiling first, and then the walls after. That will make plastering over the cracks on angles easier. When hanging the drywall or plasterboard on the walls, be sure to cut the whole drywall over the doors and windows. Using small pieces can cause cracks in the future. Tape the drywall or plasterboard joints starting with the flat parts of the board. Then place the two pieces together and tape them at an angle.