This is what Ive been building for the past 2 1/2 weeks and finally it went out the door today! My hands are hurting cause all those clamps you see had to be clamped up every day 6 times and unclamped every morning to apply a few layers @ 1/8"+ a day. After that 2" stringer was all clued up I also had to do the same with a curved handrail also. My blisters have blisters! I will have 2 more of thses to do very soon that will be Brazilian Cherry treads and American Cherry stringers, risers, and handrail. Ive built a lot curved stairs in my time and a couple spirals but this was different with it being boxed in on both sides and closed route also so there is no give anywhere and makes assembling ot very freaking hard!