Exodus 26:17 DBY

¹⁵  And the boards for the tabernacle thou shalt make of acacia-wood, standing up;

¹⁶  ten cubits the length of the board, and a cubit and a half the breadth of one board.

¹⁷  One board shall have two tenons, connected one with the other: thus shalt thou make for all the boards of the tabernacle.

¹⁸  And thou shalt make the boards for the tabernacle, twenty boards on the south side southward.

¹⁹  And thou shalt make forty bases of silver under the twenty boards; two bases under one board for its two tenons, and two bases under another board for its two tenons.