3 Seater Sofa is a loveseat for both seating designed for three people and proportioned slightly differently. The best way to choose between them is to look at the measurements of your room and select the size that works best. 3 Seater Sofa is one of the most durable furniture fabrics. These leatherettes have very strong material that must be woven tightly in order to be considered durable. It is less likely to allow dirt, dust and liquid to penetrate.