Perhaps I missed it and I’ll read through it again, but one thing I like with the plans/instructions I’ve purchased is when right in the instructions I’m told approx how much lumber was required. That often means the difference in whether I’ll do a project or not. Even a project like this that I really want to do. I have a long piece of walnut downs stairs that probably 1.5″ thick and 6″ to 7 ” wide and maybe 7′ long. I’m sure that’s not enough. However, I also have some curly maple. I might have more if it in terms of length, but the boards may not be wide enough. Anyway, knowing the materials requirements up-front would be helpful. Thank you.