A sideboard cabinet is a piece of furniture that is typically used in a dining room or living room to store dishes, cutlery, linens, and other items used for serving food or drinks. It is often placed along one of the walls in the room and has a flat top surface for placing food or drinks when entertaining guests.

Some sideboard cabinets have shelves or drawers for storing items, while others have cabinets with doors. They can be used for both functional and decorative purposes, adding style and storage to a room.