Exodus 36:18-21

18And he made fifty clasps of copper to couple the tent, that it might be one.

19And he made a covering for the tent [of] rams' skins dyed red, and a covering of badgers' skins above [that].

20And he made the boards for the tabernacle of acacia-wood, standing up;

21ten cubits the length of the boards, and one cubit and a half the breadth of one board;