Exodus 36:20-30

20And he made the boards for the tabernacle of acacia wood, standing up.

21Ten cubits was the length of a board, and a cubit and a half the breadth of each board.

22Each board had two tenons, joined one to another: thus did he make for all the boards of the tabernacle.

23And he made the boards for the tabernacle; twenty boards for the south side southward:

24and he made forty sockets of silver under the twenty boards; two sockets under one board for its two tenons, and two sockets under another board for its two tenons.

25And for the second side of the tabernacle, on the north side, he made twenty boards,

26and their forty sockets of silver; two sockets under one board, and two sockets under another board.

27And for the hinder part of the tabernacle westward he made six boards.

28And two boards made he for the corners of the tabernacle in the hinder part.

29And they were double beneath, and in like manner they were entire unto the top thereof unto one ring: thus he did to both of them in the two corners.

30And there were eight boards, and their sockets of silver, sixteen sockets; under every board two sockets.