Built these for Christmas presents for the family. Used the 5 1/2 in wide pickets for the big ones. Used the 3 in wide pickets for the small ones, and cut everything else to scale. I don't have a kregg jig so I just screwed them in from the sides. Doesn't look quite as nice, but is plenty sturdy. I also added the mitered top like many others have.
The dark ones are Java Bean stain, the one is raw (obviously), and the other is Red Mahogany stain.