I am looking to put a lattice patio cover over our patio. I would like some help from you all. Here is a simple idea of what I have in mind:



Of course, on top of C's, I will have the lattice mounted. I am looking at using the colored vinyl/plastic lattice.

Is it ok to attach the posts (A) in the ground using like the round concrete forms (or just a hole and some concrete) and some of these? How deep should I put the concrete? Or should I attach the posts to the patio somehow?

What should I use for post A? Is there something besides wood that can hold up to the weather better? Like an aluminum or vinyl 4x4 post? or should I just use the normal 4x4 weather treated post?

What should I use for the long cross pieces (B)? Should they be 2x6 or 2x4? Like above, any ideas besides wood?

What should I use for the short cross pieces (C)? Should they be 2x4 or 2x2? Like above, any ideas besides wood?

Any suggestions/help would be appreciated!

Thanks,
Brian