If you are remodeling or building a new home, I urge you to go curbless. What am I talking about? The curb is that threshold between the shower area and rest of your bathroom. It is typically there to restrict the water from flowing into the rest of your bathroom (here is a typical shower with curb). You probably don't think much about the little edge. But think about getting old and having to step over that curb, or being in a wheelchair and being restricted by it, or how easy it is to trip over the barrier and hurt yourself. It's a safety concern and an unnecessary nuisance. So make your life easier and cleaner....go curbless. I recommend the ARC shower systems to achieve this look.