Exodus 36:23-25

Young's Literal Translation

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

²⁴ and forty sockets of silver he hath made under the twenty boards, two sockets under the one board for its two handles, and two sockets under the other board for its two handles.

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