I have an almost impossible project ahead of me.. I'm planning to tidy up the stairwell down to the basement and was thinking of insulating and covering the stairs above. I've been trying to figure out how to do this in the best way but have hit a dead end. One side of the stairs has stringers that the ceiling panel could be attached to, but the other side has nothing to attach to and I can't see how I would attach a beam. How would you do it?