I just dont think it would really help that often. It is not the stairwells that are burning, it is some appartment on a floor below. Your problem is going to b

I just dont think it would really help that often. It is not the stairwells that are burning, it is some appartment on a floor below. Your problem is going to be smoke and visibility, not some couch blocking the stair. If those stairs are connected, you will most likely have smoke everywhere and will have no clue if one stair is safer than the other.