Exodus 26:16-18

New King James Version

¹⁶ Ten cubits shall be the length of a board, and a cubit and a half shall be the width of each board. ¹⁷ Two ^[a]tenons shall be in each board for binding one to another. Thus you shall make for all the boards of the tabernacle. ¹⁸ And you shall make the boards for the tabernacle, twenty boards for the south side.