actual stair measurements

[flinchlock]

In these attachments, I have a 1st flr to 2nd flr and a 1st flr to bsmnt set of stairs.

Both have the "Sec Width" at 40" in the "Staircase Specification" dbx.

1st attachment: on 1st flr showing both up and down stairs with a full height wall and a wall pushed under.

2nd attachment: on 1st flr looking down to the bsmnt... notice the rail on the left.

3rd attachment: in bsmnt looking up... notice the rail on the right.

So, I can not have dual (shared stairwell) stairs with the same "Sec Width".

If I want the bsmnt stairs to be 48", then the stairs above would be 52-1/2".

If both walls are pushed under, then the the stairs above would be 57".

Mike