A cove base is a baseboard (aka trim) that is installed along the wall or other vertical surface where the wall meets the floor primarily to cover damage from a previous wall base or to cover an expansion gap between flooring and wall or any other vertical surface. In most cases, it's a soft type of baseboard that can come in rolls or in planks. Also, it can have a lip or a toe depending on the design. In most cases, its installation cove base is glued down. Primarily is used on commercial jobs or in technical areas, such as laundry, basement, garage, etc.