The offering hall of the temple held the most significance for the royal mortuary cult. The sanctuary was in length and wide. It was entered through a black granite door, that opened up to a white alabaster paved floor, walls with dado of black granite above which was fine white limestone decorated with polychromatic bas-relief depicting divinities bringing offerings to the king, and covered along its length by a vaulted ceiling with painted stars. A low alabaster altar stood at the west wall, at the foot of a granite false door, possibly covered in copper or gold, through which the spirit of the king would enter the room to receive his meal, before returning to his tomb. Unusually, the false door has been crudely fashioned, and bears none of the names, titles, or sacrificial formulas that are expected to be found. This led Borchardt to speculate that the door may have originally been sheathed with metal, that was eventually stolen by thieves. The room also originally contained a black granite statue and an offering basin, located in a recessed niche in its south-west corner, with an outflow of copper piping. In the north wall, a granite doorway gives access to five auxiliary rooms, which served the offering hall.