Evaluate the rug and sofa as one arrangement

The reference argues that a living room rug should not be chosen as an afterthought. Its shape needs to work with the sofa's size and configuration, helping the seating area feel anchored. A rectangular rug is described as a versatile starting point for many layouts. Other shapes can introduce interest, but their relationship to the main furniture matters more than choosing an unusual outline in isolation.

Give a corner sofa a substantial foundation

For a generous corner sofa, the designers recommend a correspondingly substantial rectangular rug. This establishes the seating zone and provides a base for other elements such as a round coffee table, textured cushions, or a floor lamp. Consider both shape and scale before choosing the pattern. The aim is a floor covering that enhances the sofa and the room's circulation rather than competing with the furniture it is meant to connect.