Exodus 26:25

22 And for the sides of the tabernacle westward, thou dost make six boards.

23 And two boards thou dost make for the corners of the tabernacle in the two sides.

24 And they are pairs beneath, and together they are pairs above its head unto the one ring; so is it for them both, they are for the two corners.

25 And they have been eight boards, and their sockets of silver [are] sixteen sockets, two sockets under the one board, and two sockets under another board.

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;