We have a carport (20x42) that is not attached-to, but about 3 feet from the side of the barn. I want to close-in the bottom well to keep critters out, and use chicken wire to close in the entire structure (2 doors).  I want the space to be open and airy, mostly easy to clean.  In the winter months I will hang clear plastic on the outside and use hay bales and heat lamps if necessary.  But in the…