Exodus 36:12-17

12He made fifty loops on one curtain and fifty loops on the end curtain of the second set, so that the loops lined up opposite one another. 13He also made fifty gold clasps to join the curtains together, so that the tabernacle was a unit.

14He then made curtains of goat hair for the tent over the tabernacle—eleven curtains in all. 15Each of the eleven curtains was the same size—thirty cubits long and four cubits wide.1 16He joined five of the curtains into one set and the other six into another. 17He made fifty loops along the edge of the end curtain in the first set, and fifty loops along the edge of the corresponding curtain in the second set.