I volunteer for a dog rescue and so far we've been blessed with good weather. As winter draws near I'm thinking about purchasing a portable backdrop setup to use inside. When I looked at what to buy I just got very confused! Most of them said they were 10' high. The rooms I would be photographing in are pretty small. Does 10' been it is that tall or that it can open that tall, but can be shorter than that? If someone could offer some guidance in what to buy it would be appreciated!