All the doors and posts - The doorways, and the posts which formed them, seem to be intended. These were square at top, not arched or rounded. In Assyrian buildings arched doorways were not uncommon. The doorways also, like the windows, exactly faced one another.
Related Commentaries of 1 Kings 7:5
1 Kings 7:5
5 And all the doorsb and posts were square, with the windows: and light was against light in three ranks.