Ezekiel 40:35-38

Then the man brought me to the inner north gateway. He measured it, and it was the same as the other gateways. Its rooms, inner walls, and porch measured the same as the other gateways. There were windows all around the gateway, which was eighty-seven and one-half feet long and forty-four feet wide. Its porch faced the outer courtyard. Carvings of palm trees were on its inner walls on each side, and its stairway had eight steps. There was a room with a door that opened onto the porch of the inner north gateway. In this room the priests washed animals for the burnt offerings.