SU 8122 forms the eastern limit of room I-13. All four walls of room I-13 seem to be built with the same construction technique and are of the same material which suggests that they were part of the original construction of the building. The room was possibly constructed around the imperial period in the 1st to 3rd centuries AD. The wall still has plaster affixed to the top half which gives a sense of how the walls may have originally been finished.