Is the framing/sheathing the end walls the main thing preventing the whole structures from collapsing left or right when looking at it from the front. In other words what is stopping the left and right walls from both leaning one way or the other, I mean could you build this without end walls or...
I assumed 10' spacing would be too much, what should i use for the top plate as there would be 4 trusses on it unsupported by posts, 2x6's inside and out on edge then capped with a 2x10 perhaps?
Here is one of the larger manufacturers in Canada. http://www.norsemanstructures.com/
They are very popular as they allow light through, easy to build. The one I bought used single pipe structure and being a cheap chinese import I just discovered thinner wall tubing than the norm. Mine measures...
They are rough sawn true 6" eastern hemlock treated specially treated for in ground use (not common lumber yard material), no concrete footing and back filled with sandstone/baseball size and smaller. They are locked in there very well.
After thinking this through a bit more it probably doesnt...
I had a 30 x 85 tarp building and I built it on a 5' high knee wall. The wall is built from 6x6's on 5' centers buried 4' in the ground with a double 2x8 as a top plate. My tarp building collapsed from a heavy snow load but the knee wall is still fine. I would like to possibly build a pole barn...