Extra Wide Oven Base cabinets come with a 4″h filler piece to perfectly frame your oven. Additional fillers can be purchased in accessories and add-ons if needed. This cabinet can also be used for built in appliances such as dishwashers and under-the-counter fridge drawers. It is recommended to have your appliance picked out and its specifications referred to prior to purchasing this cabinet. Varsa Woodworks is not responsible for incompatibility with appliance or incorrect installation.