"Who has measured the waters of the sea in the hollow of his hand and marked off the heavens by the width of his hand? Who has enclosed the dust of the earth in a measuring bowl, or weighed the mountains in scales and the hills in a balance?
You are to make it hollow out of boards just as it was shown you on the mountain, that's how they are to make it."
And he put the poles through rings on the sides of the altar to carry it. He made it hollow, out of boards.
1 Kings 7:15
He fashioned two bronze pillars, each one eighteen cubits high, with a circumference of twelve cubits.
Each of the pillars was twelve cubits high and its circumference twelve cubits. It was hollow and about a handbreadth thick.