'Thickness' in the Bible

Now there was a wall surrounding the outside of the temple. The measuring rod in the man’s hand was six units of 21 inches; each unit was the standard length plus three inches. He measured the thickness of the wall structure; it was about 10 feet, and its height was the same.

The thickness of the wall, which was for the side chamber without, was five cubits: and that which was left was the place of the side chambers that were within.

And made on them, on the doors of the temple, are cherubs and palm-trees as are made on the walls, and a thickness of wood is at the front of the porch on the outside.

The chambers were in the thickness of the wall of the court toward the east, over against the separate place, and over against the building.