Exodus 38:9-12

Then he made a wall of curtains to form a courtyard around the Holy Tent. On the south side the curtains were one hundred fifty feet long and were made of fine linen. The curtains hung on silver hooks and bands, placed on twenty bronze posts with twenty bronze bases. On the north side the wall of curtains was also one hundred fifty feet long, and it hung on silver hooks and bands on twenty posts with twenty bronze bases. On the west side of the courtyard, the wall of curtains was seventy-five feet long. It was held up by silver hooks and bands on ten posts with ten bases.