I recently bought a condo with a 11'x13' patio with a wooden privacy fence. The fence is in pretty bad shape so I want redo it with new wood in a more modern design by doing horizontal planks. I posted another question about materials (Rebuilding fence - lumber questions) and from that discussion now have questions about the structural integrity of my design. I sketched out the existing framing and proposed framing with an sky view and front view.
The main difference is that I will be increasing the size of the corner posts to 6x6 so that I can screw the horizontal planks to the framing and the post will still stick out of it. Something like (https://i.pinimg.com/originals/8c/e8/d4/8ce8d43018c740fb1c6b47f8a6a369d8.jpg). I also want to add a 4x6 post in the middle of each side to break up the long stretch of horizontal planks.
Is this plan sound? I am open to all suggestions, thanks in advance!