And the best part: Once you've used the stair, you can dismantle and recycle. Won't have a bulky item to store away either. if you ever need a stair, can just build a new one. Win win.
Btw, I would've used a rope to tie the thing together instead of nails.
True, Earth will be paradise if we abandon the disposable culture... It would be awesome to use only rope instead of nails, right now we're racing against the winter to lift a decent room to live in, after that there's a lot we'd like to experiment on regarding bioconstruction and regenerative agriculture.