advanced rendering for AutoCAD
nice design, I am not too sure about the timber boxes cladding as they seem too far out, you would end up in having very deep steel beam to tie it back to the structure, cantilever up to 2meter in fine. Your structure engineer would have a nightmare tying all these cantilever beams...:) just me opinion...:)
No worries... Both cantilevers up an down will be fixed and tied, which makes me (and my structural engineer) believe this will work as a shelter (structure). Steel elements are not extremely huge - 2,7m far out and 2,95m high, the main RHS (floor) is 160mm, up (ceiling) - 140. All of them are crossed.
So, Mike, let's be optimistic... :)
PS - I give up - tried to create my own grass, but yours seems to be much better. :)