Does anyone else happen to know any other staircase methods like this? If so please tell us. Construction For Destruction - Stairs/Steps - YouTube
I know about two: The 3x3 Short Block from the blocks section, and the Window Coliseum from the walls section. Both have an invisible barrier somewhere on them just like the Strut. Here's a video with an example on how you can use the Window Coliseum, for instance together with some Rock Arches: RifleGaming's Forging Secrets - "Rock Aesthetics" - YouTube
Might be, but I would stay away from overusing those objects since they are one of the most important things that cause a lot of framerate lag.
There are quite a few threads here about making those you could find wih the search function. There are some other tricks that I think can make it work better. The railing stairs just use the angled part on one edge of the railing to smooth the edge of the stairs. Those don't look as good and can be quite expensive but are much less complicated.