This is a good structure for our chickens.  We have hutches inside for shelter.  This gives us and the chickens room to move inside the structure.  We reinforced it with extra PVC piping to withstand winter weather.  The metal poles were easy to assemble.  Many of the joint pieces were bent and the pipes would not fit in, however, I was able to open them with plyers.  We bought a full sized heavy duty tarp for the roof.