Ezekiel 40:19, 27-28, 44

Then the man measured across the Temple’s outer courtyard between the outer and inner gateways; the distance was 175 feet.

And here again, directly opposite the outer gateway, was another gateway that led into the inner courtyard. The distance between the two gateways was 175 feet. Then the man took me to the south gateway leading into the inner courtyard. He measured it, and it had the same measurements as the other gateways.

Inside the inner courtyard were two rooms, one beside the north gateway, facing south, and the other beside the south gateway, facing north.