Moreover it is durable and can keep the level of the rod to not one day gets lower and looks bad. The finishing should be good because if it doesn’t the sometimes the curtain will get stuck because of the bad finishing in painting the rod. There are several things to consider when you want to choose a curtain rod for your bathroom. You should measure the length and width of the spot that you want to be curtained. This is necessary because you the size of there are different size of curtain rod; there are ones that are 66” long and there are also ones that are more than 66” long. Bathroom.