He is going to need stand mounts. Floor standing speakers just don't work very well in rooms this small. The bass becomes too much and the speakers never have a chance to open up. If you pull the speakers away from the wall to reduce the bass, the treble becomes too aggressive because the tweeter is only five feet from your ears. Visually, big speakers throw a small room's balance off. They dominate your attention while in the room. Speakers need to fit in when they are being used in the main sitting room.
My .O3,
Chris