Exodus 38:15
And the curtains on the other side were also fifteen cubits long, with three posts and three bases as well.
Berean Standard Bible
And for the other side of the court gate, on this hand and that hand, were hangings of fifteen cubits; their pillars three, and their sockets three.
and so for the other side: on this hand and that hand by the gate of the court were hangings of fifteen cubits; their pillars three, and their sockets three.