built this in August, its fully done now, 11 by 22 holds 24 400 watt panels bi facial in Apollo beach FL 3 ft in ground for posts, 4 snap rack mounts for each panel(shared in between), other than that all wood, pressure treated 6 by 6 and 2 by 8 and 10's across, to make sure wind cant take it. They are nowhere near the right angle but they produce quite a bit of solar for sure, i am sure i am losing 25 percent at times but that's ok, it is dual purpose. Spacing between each row to allow for any removal and wind to get through. Originally it was for 12 panels but soon after i added 12 more, could have been done better if I had done that all at once, like make it 15 by 30 or something