I like it and the multi level is nice,. but I had to comment about the nail gun. I recently bought a framing nailer for a coop project . I got all material for free except a few 2x4s. and that justified buying nailer for me .....LOLI will admit, I would have changed a few things. We built it from the top down, I would build the next one from the bottom up. The paint would go on before I attached the wire. I still need to finish painting this one too. I would have bought the air framing nailer before we started cause once we bought it everything went so fast! Didn't have to hammer anymore nails.
Without the cost of the air nailer it was just under $150 to buy materials. You could build it cheaper but since it was going to be outside for a little while until the new barn is done. I bought some better materials to build it which of course cost more.
The bottom is wire for raising waterfowl, figured it would help reduce the chance of them rotting a wooden flor out since they like to play with the water so much.