I am building a new home on a beautiful natural pond. The great room encompasses the kitchen and DR at the back and sweeps through over 40 feet out to a 4 seasons room. There will be "Nana" doors(collapsible glass doors) separating the great room and the 4 seasons room that can be closed and will need some type of curtain for privacy. The width of the opening is 24 feet. I don't need heavy "black-out" type curtains, because this is recessed into the house enough that lighter material should provide privacy. I have no idea as to "style" of curtain nor material. Please advise.