We have purchased the portable fencing panels so we can keep our dogs in an area around the RV without being on the leash the whole time. And yes, we will be outside with them when they are in the pen...
What size dogs?? With our toy size we use a 3" exercise pen. With our large dogs which we used to have, two fastened together gave a bigger area which was necessary. Never had any success using the side of the rig as a barrier.