When it comes to material both the frame and upholstery materials of sofa couches can have a great influence on both quality and design. Sofa frames are usually made out of wood or metal. Wood species such as oak, cheery, walnut are an ideal choice due to their wonderful finish and durability. Metal frames give the sofa a modern chic look and are highly resistant. When it comes to upholstery which is the material that goes around the sofa the choice is leather or fabric. Leather is a very durable material that looks luxurious and provides a lot of comfort, but it can be quite expensive. Fabric on the other hand is more affordable, comes in variety of textures and colours and is very comfortable as well. The most common types of fabrics used in sofa couches include cotton, linen, polyester and rayon.