This is what a new steel staircase looks like.Bent diamond plate steel treads with countersunk galvanized nuts and bolts flush-mounted to bent steel carriers underneath which are welded to structural steel channel stair stringers. Stair treads can be easily removed for cleaning under staircase and staircase painting which should be done with a good exterior paint every few years or so and they will last forever, as long as you keep them maintained.
