It is hard to rank altitudes of these giant walls. For Triglav's north face it is for example interesting, that its height only to Kugy's band is some 1200m (while it's more that 3000m wide). But Kugy's band is something I would hardly consider to finish this wall. It's very narrow, and by such criteria, every wall should be easily cut into pieces. Above Kugy's band Triglav has a 300m high summit pillar, so the whole north face is some 1500m high.