The Inner Court of Herod's Temple from Unger's Bible Dictionary
The entrance to the court of the Israelites was the western gate of the outer court and was reached by a stair of fifteen steps. This inner court measured 187 cubits long (from E to W) and 135 wide (from S to N), and surrounded the Temple. Against its walls were chambers for storing the utensils required for the services. It had three gates on both the S and N sides, making seven entrances in all. Eleven cubits of the eastern end were partitioned off by a stone balustrade 1 cubit high, for the men (the court of the Israelites), separating it from the rest of the space that went to form the court of the priests. In this latter court stood the altar of burnt offering, made of unwrought stone, 30 cubits in length and breadth, and 15 high. West of this was the Temple, and between it and the altar stood the laver.