The length of the cells is not mentioned in Middot. The present reconstruction assumes a barrier wall 4 cubits (7 feet) wide between the cells, and an overall length, on the north and south, equal to the length of the interior of the building; that is, 61 cubits (105 feet). The total length of the western cells was limited on the north and on the south by the cell walls, giving them a total length of 44 cubits (76 feet). Thus by subtracting the thickness of the divider walls from the proposed total length of the cells on the north and south and on the west and dividing by the total number of cells on each side, we arrive at 9 cubits (16 feet) for the length of the northern and southern cells in the three stories and 12 cubits (21 feet) for the length of the western cells on the first and second stories. It is not clear how the two cells of the western third story were divided; it may be that the division was asymmetrical so that they had different lengths.

The height of the cells is not recorded in Middot. It is possible to deduce from Middot 4:5 that the cells encompassed the entire height of the Sanctuary, since the roof surface of the cells is on exactly the same level as that of the floor the Upper Chamber. Presumably, the entire roof structure the third-story cells formed a continuation of the roof structure separating the lower level of the building from the Upper Chamber. This roof structure was 5 cubits (9 feet) thick. If we assume that the ceilings of the first and second cell-stories were 2 cubits (3 feet) thick each, then we are left with a space 12 cubits (21 feet) high for each cell. These are the measurements adopted in the present reconstruction. According to our assumption, these ceilings, which rested upon the walls of the Sanctuary, consisted of wooden beams that ran across the cells.