Mark ceiling to the measurements obtained. Use the carpenters' chalk technique described in Room Divider, Step 6. 3. Center the board on wrong side of fabric strip. Pull fabric very taut and staple to board. Neatly miter excess at ends and bring to upper side, trimming away any extra bulk.
Staple ends in place.
Turn board over and mark screw placement. Pre-drill screw holes through board. If board is fabric covered, make a small slit at each marking, on both sides of board and then pre-drill screw holes, pushing fabric out of way to avoid snagging. Staple tape to board to reinforce. Install board to ceiling with appropriate ceiling fasteners or screws.