Furniture arrangement can play a major decorating role in a narrow, rectangular living room. Break up the sight line in a long, narrow space by placing back-to-back loveseats in the center of a room perpendicular to the longer walls. Loveseats are shorter than standard sofas, allowing ample walkways between a wall and each end of a loveseat. Position a pair of armchairs opposite each loveseat to create two intimate conversation areas. Situate a large ottoman or coffee table in the middle of each furniture grouping to marry practical function with visual aesthetics. You can also situate an open shelving unit in lieu of the loveseats to break up a narrow, rectangular space into two distinct spaces without creating a closed-off appearance. Accent tables with glass tops and metal legs deliver a more visually lightweight, streamlined appearance than solid, wooden pieces.