Seven years I had a building built 14" tall so I could get a larger RV at some point. I knew nothing about doors, floors and sidewalls, but I told the large building company what I wanted. Bottom line...
When we got our first Motor home, I wanted to build a garage to house it. Banker told me it was foolish to build a building for something that should NOT be there. Suggested that I use the building money to buy gas instead, then there would be no need for the building. and,HE WAS RIGHT!!!