Exodus 38:7-11

7Then he put the poles into the rings on the sides of the altar to carry it, and he made it hollow, out of boards.

8He made the basin and the base from bronze, with mirrors from the women who served at the entrance of the Tent of Meeting.

9Then he made the courtyard. For the south side the hangings of the courtyard were finely twisted linen, 100 cubits long.

10There were 20 pillars and 20 bronze bases. The hooks of the pillars and their bands were silver.

11Likewise, for the north side, 100 cubits long, with 20 bronze pillars and bases, and the hooks for the pillars and their bands were silver.