Our wet bath has ceiling a track with tabs that attach the shower curtain which runs across the door opening. Since it's old and the cabinetry and walls worried me about being waterproof I added more ceiling track and another shower curtain to cover all that. I purchased standard shower curtains and shortened them to the length I needed. We removed the door as well and have a ceiling track upholstery fabric "door". Again with the ceiling track, I installed a privacy curtain that can be pulled closed to shut off the bath area for after shower drying and dressing space where my tiny ceramic heater warms up the space. When not closed the curtain is held back out of the way with customized plastic door retainer straps that just snap. Works great and no freezing your tusch when getting out of the shower, just have to be sure to lock the camper entry door to prevent unexpected company.