Exodus 26:22-23

26:22 And for the back of the tabernacle on the west you will make six frames. 26:23 You are to make two frames for the corners of the tabernacle on the back.

Exodus 36:27-28

36:27 And for the back of the tabernacle on the west he made six frames. 36:28 He made two frames for the corners of the tabernacle on the back.