A coal fired ship comprising a transverse bulkhead disposed between the rearmost hold in the stern and the engine room and bent or curved at its center portion to project into the engine room and thereby provide a main coal bunker between the hold and the engine room. An interior dead space of the ship is effectively utilized to provide the bunker without reducing the floor space of the engine room or the hold capacity and with the ship maintained in trim although the bunker is disposed in front of the engine room.