Not sure why you would want to do this unless it is much more cost effective? Initially I put all post and rail around my fields as were then predominantly for horses. Latterly as we have polled sheep,and horned angora goats replacements have been stock netting. The best all purpose/ cost effective option is stock fencing with a single top rail as it looks good and keeps everything in, horses, pigs, goats, sheep. A single electric wire keeps the big ones from leaning on it too.