Exodus 27:10-12

and its pillars shall be twenty, with their twenty sockets of bronze; the hooks of the pillars and their bands shall be of silver. Likewise for the north side in length there shall be hangings one hundred cubits long, and its twenty pillars with their twenty sockets of bronze; the hooks of the pillars and their bands shall be of silver. For the width of the court on the west side shall be hangings of fifty cubits with their ten pillars and their ten sockets.