The main or upper floor is 34 feet by 64 feet, and was about 40 feet high. As the span is long for single joists, it is possible that these rested upon a central beam, and this upon posts; or, as no bases have been found, it may be that they were stiffened by struts from the side walls. Some traces in the ashlar of the broken staircase at the north-east corner seem to point to an entrance from the stair through the north wall, similar to that supposed below. In the south wall are three window recesses corresponding to those below, but of 6 feet opening, with segmental heads. They rest on the floor and are 12 feet high. Above one of these openings, on the outside, may be traced the head of one of the original Norman windows, which shows that it was of small size—probably of 2 feet opening. These have been replaced, with small regard for congruity, by late Tudor windows of three lights, divided in the centre by a transom. In the east wall are two similar windows, and over the well-pipe is the well-chamber, 7 feet square, rudely vaulted and groined. Its floor has been relaid, but it is evident that the pipe ascended into this chamber, and that a pulley hung from the centre of the vault for the working of the bucket. In the south-east corner is a locker for a spare rope or tools. The entrance to this chamber was through the jamb of the adjacent window, but a second doorway has been broken direct from the great chamber. Close to this breach a door and bent passage lead into the south-east turret, where is a chamber 12 feet 6 inches by 15 feet. The floor is of earth, with which the turret is filled to this level. Above are traces of an upper chamber, entered probably by a ladder and a trap-door. There is no fireplace, but a loop high up in the south wall has been converted into a window, and a second loop remains in the east wall.