The staircase and railing dominates the central area of our home. The original railing and stairs was cheap track home chic with carpet rolled over the side of the stair treads. The first day we moved in back in '98' Byron got his head stuck in between the rails. Not up to code.
I designed the layout but I hired others to do the construction (a rare occurrence). A staircase requires a high degree of specialized skill that is beyond my humble ability. Sometimes you just gotta make the investment to protect your kids heads and keep up the value of the homestead.