We have had a lot of customers over the years looking for something a little more stylish to put in their commercial buildings because most of the commercial door hardware out there is available in limited styles and finishes. One of the reasons is that some finishes that people use in their homes would not hold up under the constant use in commercial buildings. Of course we recommend using commercial hardware in a commercial building, but we have had several customers decide that they would prefer the residential hardware anyway so they can get the look that they want. There are a few problems with this. First, the manufacturer will not honor their residential grade warranty if the item is used in a commercial application. Second, if the finish chosen is a living type finish it will wear much much faster than it should. And lastly, residential grade locks are meant for residential use. Their internal components are not built sufficiently to handle all of the wear and tear and abuse that commercial locks get.
So if you are considering using residential door hardware in a commercial building, be forwarned that you might find yourself in a fix with worn out locks and no warranty to cover them. To some it is worth the risk, but i’d probably error on the side of caution and use something like Schlage Commercial Hardware that is designed for the intended use.