Can you build an aviary with instead of metal poles pvc. It will be 16 foot across. With 20 ft poles stretching that distance. I am using metal welded wire instead of netting because of all the snow I get here.
Depends on how you attach the pvc and the diameter of it if it will hold the weight of the welded wire. I used 2x4 welded wire on electrical conduit clamped to tposts...worked well for snow going thru until we got frozen rain followed by wet snow that grabbed on and nearly collapsed it.