Gotta agree with them....goats are michevious escape artists LOL. We used 2x4 wire field fencing. As long as there wasnt a loose area at the bottom, they stayed put. Although they did try.
And definatly atleast 4' high. We figured 3' would be fine with a couple pygmys...well we were wrong LOL. They were only a couple months old and had figured out how to jump it.
Good luck with your goats and fencing!
Good luck with your goats and fencing!