The gazebo is physically bonded via the EGC to the frame including #10 self tapping screws for mounting the boxes, Very secure chase nipples behind and through the frame of every box, every box grounded with the ground screw provided, 16 - 4" red heads and an unbroken path to the sub panel grounding bus.
I am not driving a rod. To bad I'm not a good carpenter, then I would have built my own gazebo with WOOD.

Note: There is a point on the very top for decoration.