Sorry, should have been more clear:
When I write Commercial/Residential , it’s a single grade which combines both. It has the heavy duty build of commercial requirements along with a TR face. They are often stamped "Special Grade."
A standard Commercial outlet won’t have TR features, and a residential outlet with TR won’t be heavy duty.
Commercial/Residential outlets are in the $5 range. More expensive than your average commercial outlet or your average residential. I use these exclusively in my home because I've seen first hand how worn out residential outlets get in 10 years.
The next grade up is, of course, Hospital Grade, which as I mentioned, usually are not TR and you have to hunt for those. Further, a lot of them are 20A outlets which should only be used on 20A circuits, so in a home you may have a little harder search looking for an outlet that combines:
- Hospital Grade
- Tamper Resistante
- Only 15A