Like unto this porch - i. e., of similar materials, hewn stone and cedar. The zenana could not have been a mere portico.
Related Commentaries of 1 Kings 7:8
1 Kings 7:8
8 And his house where he dwelt had another court within the porch, which was of the like work. Solomon made also an house for Pharaoh's daughter, whom he had taken to wife, like unto this porch.