Ezekiel 40:9-11

9Then he measured the porch of the gate, eight cubits, and its side pillars, two cubits. The porch of the gate faced inward [toward the temple of the Lord].

10There were three guardrooms on each side of the gate toward the east; the three were the same size, and the side pillars on each side measured the same.

11And he measured the width of the gateway, ten cubits, and the length of the gate, thirteen cubits.