How wide do they make bath doors in. I would like one for my whirlpool that I will be getting. These things can get quite long so I don't know if they even make any that will fit. Probably do though. The whirlpool will be up against three walls and one side (long) open. Perhaps a sliding door or something would work here. I could probably always use a curtain if no doors existed. Any better suggestions on enclosing a whirlpool etc.. Thanks