A few years ago I got some ideas for a cattle panel hoop house from this forum. I built two of them and they work great. I recently needed a larger enclosure due to some extra turkeys and ducks. I'm not sure if this has been tried before, but i thought I would share how I made a larger hoop from the cattle panels just in case it hasn't. The finished enclosure is sixteen feet wide, sixteen feet long and a bit less than eight feet tall. The length is dependent on how many panels are added. I first cut a cattle panel in half and wired it to the end of a full panel. Probably could have used hog rings, but the wire made a connection that didn't move when I later tried to hoop the thing. I overlapped the panels by two of the square holes and wound wire around the spots that matched. I only did this for about four spots (very hard on the hands. When hooped the panel is a little floppy, and not a stiff as a single panel. I tried two complete panels and they were just too floppy to work with by myself. I then flipped the panel on the long edge and used a peice of rope to bend it into a hoop (the doubled up section required a bit of kicking to get a nice curve. I added a sixteen foot 2x4 to the bottom, across the flat of the hoop, and drilled a few holes in the 2x4 near the ends. I used the same wire (electric fence wire) that I used to wire the panels together, and fed it through the 2x4 and around the edge of the cattle panel. This will be the bottom of the hoop and the 2x4 will sit on the ground tying the ends together. I then grabbed some 1x4 I had laying around. I cut two pieces seven feet long and one piece eight feet long. I counted up 13 of the squares on the panel from the bottom (where the 2x4 was now attached, and fed the eight foot 1x4 through the 13th square from both sides. I then put the seven foot 1x4s into the number twelve squares and used a framing square to ensure that the connection was square before I screwed the seven foot boards to the eight foot board making a corner. I then attached the bottom of the seven footers to the 2x4 also making sure that the connection was square. I had to measure a bit to make sure the joints were equal distance from each end of the 2x4, but after a few tries I got it figured out. I then stood the hoop up and drug it over to attach to the others. That's it. I only built one "frame" per elongated panel. I attached each panel to the unframed end of the next. For the ends I used a complete panel and just hog ringed it to the new hoops. I added weld wire to the top to fill in the ends, and drove a couple of stakes in around the bottoms of the new hoops. I also added some chicken wire to the bottom for the little birds to come, and if the racoons come back I will probably cover the rest of the hoop with weld wire. For less than a hundred bucks I now have a hooped pen that is 256 square feet. It isn't a strong as the smaller hoop houses, but could be if I wanted to add more lumber (I sort of ran out of scrap lumber). I hope this helps somebody. I really like the hoop houses I built from this forum, I just needed to go a bit bigger. I might be able to get pictures if the explanation isn't good enough.