To get this kind of L shaped curtain rod, you can buy in any place that serve and provide bathroom furniture. However, if you want to be more efficient and also creative way, you can create your own curtain rod by using simple materials. However, with L shaped curtain rod, you can install it in a spacious bathroom or the small one, as long as the shower or bathtub that you want to be curtained is placed near the wall because it needs to be installed by attaching each end of the rod to the wall. Architecture.