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This well-preserved ceiling is the original one. The fresh-looking sawed ends and notches in the beams is where sections were removed for tree-ring dating. The small round holes, less destructive of the timber, are made with a hollow auger bit which removed a core—the preferred method of taking samples. Seven dates were obtained from the cores and sections in this room. Three of them were cutting dates, indicating the last year of the growth of the trees: A.D. 1077, 1078, and 1079. The construction date was probably 1079 or 1080.
Though this section of the pueblo was three stories high, some of the ground floor rooms were used as living quarters equipped with firepits. Relatively few firepits were found in the ruin, most of them in one story sections, in the open on the edges of the plaza, or next to an outer wall in a kiva courtyard, but there was evidence in the fill of the rooms that others had existed on the upper floors and on the terraced roofs.