  :I'm not clear about this Palladian truss either, but the source is here. We can easily change the joints when we come to an understanding of what a Palladian truss actually is. The Valeria article seems to suggest that palladio is a uniquely Italian name for what we'd call a queen post truss, but the diagrams I linked to make it look far more like a king post truss, I agree. Any ideas?   