Exodus 36:14

Fifty loops made he in one curtain, and fifty loops made he in the edge of the curtain which was in the coupling of the second: the loops held one curtain to another.

And he made fifty taches of gold, and coupled the curtains one unto another with the taches: so it became one tabernacle.

The length of one curtain was thirty cubits, and four cubits was the breadth of one curtain: the eleven curtains were of one size.

And he coupled five curtains by themselves, and six curtains by themselves.