The International Building Code (which all of Caif. and where the entire U.S. is not only headed, but is almost there), (we use to have three different primary codes), does not require nosing on R-3 (residential) stairs which are not "solid". Section:1009.3 exception 4.
So, if I'm laying out stairs and I have say 90" of travel to cover and there are no other overhead or other constraints, then I set the real treads on a framing square to 10": and I get..(you guessed it) 9 treads on the "horse".(risers to code) I don't have to have a nosing, so if I do add it, up to 1.25" it really does not matter. So I have to conclude that I don't want the nosing to adjust the stair. It's totally my prerogative if I want a nosing and does not effect the placement of the "horse" (carriage). And.. on a corner,(winder or not) the nosing, should I choose to add one, can extend past the corner turn, (just like the handrail) up to 1.25"
I'm sure other places around this round ball we all live on are different.
So, my point is this, ALLOW US TO OVERRIDE the "logic".
So G.S. in this case, when I'm driving and we're coming to a curve, PLEASE take your hands off the wheel! Thanks.
If the logic will allow me to build the total death stair shown in my last post, then why have this stupid pop up tell me I can't build a stair that I know is legal?
Bier