well wood runs about 30/ ft( stanard dog ear) the vinyl about 45( and looks like shit) the composite decking shit runs about 60. I'm not sure on chain link.
If you want it to last, make sure the posts go in atleast 2 ft, use 3 stringers, hangers, and skrews. Its going to cost you a little more a foot, but will make it last alot longer.