Exodus 36:26-30 New King James Version (NKJV)

26. and their forty sockets of silver: two sockets under each of the boards.

27. For the west side of the tabernacle he made six boards.

28. He also made two boards for the two back corners of the tabernacle.

29. And they were coupled at the bottom and coupled together at the top by one ring. Thus he made both of them for the two corners.

30. So there were eight boards and their sockets—sixteen sockets of silver—two sockets under each of the boards.

Exodus 36