I plan on fencing the goats and sheep with a 48" woven field fence. My neighbor suggested that using steel posts like the ones used in chain link fence would better than 4 by 4 wood posts for the corners because they don't rot. (I'll probably just use the regular metal fence poles for the span.)

If the expense is not an issue, would the chain-link posts take the strain as well as wood? Any reasons that this might not be a good idea?