The granaries (normally there was a pair) are fairly easy to identify. They were buttressed buildings with raised floors set on a series of piers or low walls with openings to permit the circulation of air underneath. The reconstruction of the superstructure is somewhat speculative. A central aisle with rows of bins on either side seems plausible but then so does sacks of grain in one big room. There was normally a loading bay at the via quintana end of the building. Provisions would have been purchased locally as far as possible—transport was normally by wagons drawn by oxen, which was very expensive.

Granary at Corbridge