Exodus 26:16-18

Young's Literal Translation

¹⁶ ten cubits [is] the length of the board, and a cubit and a half the breadth of the one board;

¹⁷ two handles [are] to the one board, joined one unto another; so thou dost make for all the boards of the tabernacle;

¹⁸ and thou hast made the boards of the tabernacle: twenty boards for the south side southward;