This was an internal wall probably for the latest occupation phase of the room. It divides a small section of this room on the western side. Originally the wall came further north, possibly to the limit of room 12. It was built abutting earlier ashlar constructions 5447 and 5448 in the re-purposing of the space. It was possibly used as a dividing wall for tabernae, as evidenced by the ridging in the ashlar blocks (5451).