Vinyl Liner Pools typically have lower initial cost than other types of in-ground swimming pools … Vinyl liner swimming pools are nonabrasive: The plastic liner material is sleek to your touch. Vinyl liner pools are extremely customizable and can suite a clients budget as well as their individual design needs. Pools that are lined with vinyl are built with metal or plastic frames above ground or set into the excavated hole. Prefab supporting walls or panels made of plastic, steel, or aluminum are joined to the frame, making a form that is then lined with heavy vinyl to form the pool shell. The bottom of a vinyl liner sits on a bed of sand or other material, while the
top is held down by the coping, which creates a finished edge and also acts as a border for the pool deck.