The materials and the finishing of the curtain rod are also important to be considered before buying the curtain rod. A metal L shaped shower curtain rod can be a good choice, since it doesn’t get rusted and also easy to be installed in your bathroom. One of the most wanted shower curtain rod that is easy to be installed is L shaped shower curtain rod. This kind of curtain rod curves 90 degree and needs to be attached to the wall on both ends of the rod. This curtain rod is not only for shower only, but also for bathtub or bathtub and shower stall. Bathroom.