[dad911]

Originally Posted by Red88Carrera

.....
If you can push a 4" ball between any portion of the balusters/newels--->no pass

Lot more to the code than that. Winders can be very hard to build and meet code, and now rails need to be continuous. Here's a really good guide:

http://www.stairways.org/Resources/Documents/2006%20Stair%20IRC%20SCREEN%20web%20download.pdf