Exodus 26:26-30

“Then you shall make bars of acacia wood, five for the boards of one side of the tabernacle, and five bars for the boards of the other side of the tabernacle, and five bars for the boards of the side of the tabernacle for the rear side to the west. The middle bar in the center of the boards shall pass through from end to end. You shall overlay the boards with gold and make their rings of gold as holders for the bars; and you shall overlay the bars with gold. Then you shall erect the tabernacle according to its plan which you have been shown in the mountain.