John Gill Commentary 1 Kings 7:12

"And the great court round about had three courses of hewn stone, and a course of cedar beams; like as the inner court of the house of Jehovah, and the porch of the house." — 1 Kings 7:12 (ASV)

And the great court round about
Which surrounded Solomon's house:

[was] with three rows of hewed stones, and a row of cedar beams ;
these rows were one upon another, and were a wall to the court, which were either topped with a row of cedar wood, or that was a lining to the stones

for the inner court of the house of the Lord ;
or rather as, or like to that, as appears from (1 Kings 6:36) ,

and for the porch of the house ;
not the temple, but Solomon's house.