Not a noob, but still have some questions about dome-building.
Here's the chase: I want to build a dome for my camp's communal shade structure, and I need to decide what EMT thickness to use: 3/4" or 1"? The plan is for a 3V, 22-24' foot diameter dome. I understand, having been closely involved in building a 3V nearly spherical dome (15' diameter) that 3/4" conduit is pretty strong, and should survive playa harshness and allow climbing near vertices. But I want our dome to have a few hammocks hanging, and if possible to be pretty climbable.
The question I have is whether 1" is enough of an upgrade to merit the extra cost (nearly 2x!). If the strut strength scales with area, then a 1" dome should be 70% stronger than a 3/4" dome. A 1.5" dome would be 300% stronger.
Would we be able to climb all over a 1" dome, stepping in the middle of struts? If we had the appropriate fabric, could we create an upper floor suspended like a trampoline?
The negatives of the 1" are the obvious ones: cost, cargo space, and cargo weight.
Also, will we need a ladder to build a 24' diameter dome? And I mean need.
Thoughts on covering: we may do a real cover, but I'm also idly considering cutting our cover, whatever it may be, into strips about the width of the strut lengths and just weaving it through the dome structure. This should keep it well attached. This would, of course, provide only shade and wind protection, doing little to nothing about dust and rain. But it seems workable. Comments?