Hey diy nation. New to home improvment so please bear with me. My wife and I will soon be inheriting a house from my inlaws and there is a pretty big change I would like to make to it. The house has two stair cases in it (it used to be a duplex) and I would like to remove the one in the middle of the house and put up a wall using four posts. This way I can turn that space into a master bedroom closet upstairs. Just wondering if this was even possible as long as I have it properly supported with the posts.