Exodus 27:14

The hangings on one side of the gate shall be fifteen cubits, with their three pillars and their three sockets.

Surrounding context

27:13 The width of the court on the east side shall be fifty cubits.

27:14 The hangings on one side of the gate shall be fifteen cubits, with their three pillars and their three sockets.

27:15 And on the other side shall be hangings of fifteen cubits, with their three pillars and their three sockets.

Translation and sources