Thank you all for your responses!! I'll be looking into some of your suggestions.
I have a question for you Ya Baby! What exactly did you buy at PPL RV parts?
I'm not looking for a box, I'm looking for a compartment cover for an 85 Sunrader. The compartment holds the battery, and the cover screws on the outside of the RV. I hope I'm a little more clear.
Once again... thanx ya'll!