Ezekiel 40:6-9

6Then he went to the east gate. He climbed its steps and measured the threshold of the gate; it was one rod deep.

7The alcoves for the guards were one rod long and one rod wide, and the projecting walls between the alcoves were five cubits thick. And the threshold of the gate next to the portico facing the temple was one rod deep.

8Then he measured the portico of the gateway;

9it was eight cubits deep and its jambs were two cubits thick. The portico of the gateway faced the temple.