The 5th Wall No One Notices (And Why It’s Destroying Your Room) The last time you ever looked up in your living room. We spend most of our efforts choosing the best wall colours, a new sofa, and a rug that brings it all together; however, a single surface keeps the room together quietly: the ceiling. The fifth wall of interior design, as it is also known, is affecting your space more significantly than you may believe. One of the most common ceiling design mistakes  is neglec