In our previous TT, after replacing the screen a few times, we put heavy gauge rabbit wire (purchased at Tractor Supply) over the screen. We attached it with rivets and then put a decorative screen door attachment over the top (purchased at Camping World). We spent about $30 total on the project and it took only about 20-30 minutes. We never had to worry about our pup scratching the screen again and it looked nice. Our pup is now 3 years old and has traveled with us enough to know we are not abandoning her if we step outside or leave her only to go to the store or something so she doesn't even bother the screen in our FW. I do have the option of using a child gate with the design of our FW to block the door, but I haven't felt the need to do so. She is usually right along beside us when we go places so she is left very little alone and never for very long. I can see when that would be more difficult with a cat.