Divides room I4 roughly through the middle on a N-S axis. Both floor 8070 and floor 8227 seem to originally have been level with the tops of the blocks. Perhaps this could indicate a difference in function between parts of the room.

Re-documentation needed in 2017, when may be further exposed. Possible steps for coming onto floor surface 8070 from western side, before the existence of wall plug 8076. Due to the presence of the leveling layer 8069 we can hypothesize that the western side of I4 was possibly once lower, supporting the idea of steps. Additional excavation in 2017 will hopefully clarify the situation.