Here is a stairs I just installed iron balusters in. I am going to give my honest opinion of this stairway which was out of my hands. I do not like stairs that have a change of pitch in them. This stairs starts out with 4 straight treads, then 11 curved treads. This causes a change in railing pitch..which I feel is unsightly and not near as mechanically strong. I also would have chosen different balusters so as the patterns were more in a diamond shape. This was all pointed out upfront and they insisted on this anyway.