My current progress on the stairwell. Stupidly enough I didn't take any measurements for the bit of flooring half way between the bottom and first floors... the handrail goes all the way round y'see. Actually, the hand rail is really eating up triangles... what with all the curves and everything... I'm currently sat on a whopping 3200 triangles so far. I know it's a large asset- and quite iconic but I think I may have to scale it back... a lot.