Cross reference
Ezekiel 41:8
8 And I saw that the house had a stone floor all round; the bases of the side-rooms were a full rod of six great cubits high.
Ezekiel 40:5
5 And there was a wall on the outside of the house all round, and in the man's hand there was a measuring rod six cubits long by a cubit and a hand's measure: so he took the measure of the building from side to side, one rod; and from base to top, one rod.
Revelation 21:16
16 And the town is square, as wide as it is long; and he took the measure of the town with the rod, one thousand and five hundred miles: it is equally long and wide and high.