Exodus 36:21-23

Revised Geneva Translation

²¹ The length of a board was ten cubits; and the breadth of a board was a cubit and a half.

²² One board had two tenons, set in order (as the feet of a ladder, one opposite another). He made all the boards of the Tabernacle in this way.

²³ So, he made boards for the Tabernacle, twenty boards for the south side.