Exodus 26:26-28

Young's Literal Translation

²⁶ `And thou hast made bars of shittim wood: five for the boards of the one side of the tabernacle,

²⁷ and five bars for the boards of the second side of the tabernacle, and five bars for the boards of the side of the tabernacle at the two sides, westward;

²⁸ and one hath caused the middle bar in the midst of the boards to reach from end unto end;