Posts are pressure treated 4x6 and everything else is pressure treat 2x4. The stretcher is 1 3/8" chain link top rail. Edit: I forgot to mention these are 8' high at the tallest section but gets closer to about 6.5-7' at the back from the lay of the land. The total span is 30'. submitted by /u/ElChupatigre [link] [comments]