I am turning my thoughts to my own balcony, not to be confused with Zoot's balcony, though a lot of the principles will be similar.   Here are a few design constraints.  The balcony will be about 4.5 metres wide, it can't be much wider than this otherwise it would intrude on the landing window.  It will extend perhaps 2 metres out from the house, that is open to debate, but enough room to put some chairs and a table to sit out, and to be able to pass the outward opening door when it is