I believe the benefits of a prefabricated liner outweighs a PVC liner commonly used today. A PVC liner will inevitably have folds in the process of assembling your shower bed, which will cause water build up in your shower, and water build up is something you don’t want in your shower. Often, we use a horizontal piece of wood to go behind the studs, this is commonly referred to as ‘backing behind the studs'. This is an unnecessary hassle, and the prefabricated OneLiner d …