A storage apparatus includes a base, an assembly frame, a box, a cover, and an open/close mechanism. The assembly frame is demarcated in the base. The box is buried in the assembly frame, and has a surface in which a storage opening is opened. The cover covers the storage opening and can be opened or closed. The open/close mechanism includes a guide portion, a guided portion, and an interval disposed between the guide portion and the guided portion. The guide portion is disposed on the assembly frame and/or the box. The guided portion is disposed on the cover and is guided by the guide portion. The interval is minimized at one of an open position, at which the cover opens the storage opening, and a closed position, at which the cover closes the storage opening.