Rusting steel ... Corten steel is a type of steel (which I have never had in my hand) that rusts but does not rust through. What I would fear is that it is difficult to clean (which for me is one of the most important criteria for shape and material). When you say "Stone is too cold for me" I am surprised by your preference for metal, because that is also not known for its warmth. (I don't mean to say "that's nonsense", but rather: "maybe there are other reasons for this preference") I think that with such a "search" there is no objective "right". It is always a matter of taste and finding that out I find exciting. For us, the result of this (the staircase is located in a "storage room") The pull-outs are pretty expensive and making the "pull-out shelves" was complex, but we are very happy with the order we now have.
oh yes, that's right, I had already read the term "Corten steel". I once "made" something like that myself when I left a big piece of metal longer in the rain until it was rusted in a way that I liked. Then I sprayed it with matte clear coat so that nothing discolors and into the living space with it... basically DIY Corten steel. What you say about steel and stone being "cold" is true, that is actually my search. I think it also has something to do with the supplier, who probably delivers standard staircases 90% of the time and has little time or ideas. But slowly things are clearing up for us and from all the ideas we at least have a possible, common direction. Curious to see what the supplier will say about it. In general, I also like things that have simply remained as they are or are "misused", so not from catalog page 274. Therefore, I also like things that one can only complete gradually or leave as they are, like with your staircase, for example. An acquaintance of ours has been building a staircase for years, which he built alone with steps made from leftover wood he found on construction sites or elsewhere. Unfortunately, I often reach my craft limits, which annoys me a lot. He should have learned something useful instead......
