Ezekiel Chapter 40 Vs. 18

 

The Outer Court

And the pavement by the side of the gates over against the length of the gates was the lower pavement. Eze 40:18

the lower pavement... The lower pavement was the one in the outer court which filled the whole space between the outer wall and the inner wall, a pavement 500 cubits across and 100 cubits deep on each of the 4 sides, which would be equal to 875 feet across and 175 feet deep. It was several steps higher than the ground level outside the outer court wall, and several steps lower than that of the inner court (Eze. 40:18-19).

The pavement seemed to go to these thirty rooms. Possibly on the outside and would not have been on the floor level.

The distance from the inside of the lower gateway (i.e., the east gate) to the outside of the inner court (i.e., to the threshold of the gate leading to the inner court) was 175 feet (100 cubits).