What size rug should I get for my living room? It seems like a straightforward inquiry, but the implications can be quite profound. After all, a rug is not just a decorative piece; it can profoundly influence the ambiance of the entire space. Should the rug encompass the entire seating arrangement, or would a smaller option better suit the proportions of the room? How does one consider the dimensions of the furniture, the scale of the room, and even the design style when selecting the ideal rug size? Is it advisable to allow for some floor space to peek through, or should one aspire for a fuller, more enveloping aesthetic? Furthermore, do different materials interact with size in unexpected ways, altering the perceived size of the room? These intricate considerations can certainly leave one pondering the best choice. What principles and guidelines should be followed to ensure an optimal selection, fostering both comfort and visual harmony?