First lot of "ribs" up (2 more to go).
Currently just bolted, once I'm happy it's going to be strong enough the welder will come out.
There will be braces back to the big girder thingy, initially on every-other rib unless it looks too wangy.
I will say that the extra 2.5m is a lot longer than I imagined but I'm still hoping to avoid additional verticals, particularly in the centre, someone is bound to hit it!! (most likely me)
More as we progress, this is a purely weekend job due to the help only being available on a Sunday at present.