Ezekiel Chapter 40 Vs. 22

 The North Gate

And their windows, and their arches, and their palm trees, were after the measure of the gate that looketh toward the east; and they went up unto it by seven steps; and the arches thereof were before them. Eze 40:22

These palm trees were, probably, speaking of the posts engraved with palm trees. The entrance was an archway. This area was elevated up from the floor 7 steps.

Ezekiel was then led from the east gate of the outer court to the north gate (Eze. 40:20-23) and to the south gate (Eze. 40:24-27). The design and dimensions of both gates were identical to those of the gate facing east.