I recently used this trailer to bring our pigs in for processing, figured it might be helpful for others to see how it was built. The sides are built up to around 3 feet high with 2x12" rough cut material, pressure treated 4x4's, and half-inch carriage bolts. I also added hog panels to bring the overall height of the walls to over 5 feet.
One of our major objectives was to be able to restore the trailer to its original "equipment hauling" function, meaning the walls need to come off easily. (Why buy multiple trailers...?)
- Benjamin Franklin