E57:
"Standards"??? Sounds like a lack of good old 'pride-in-workmanship'!

I see quality of work that ranges from fanatical, to.......oh well, it works; to...'oh, the AHJ has to give me a punch list, I don't have time to check the whole job'

Some of the best are the raised panel moldings that have the duplex in the molding, along with the HVAC diffuser.

I'll come back to this thread to see IF any standards exist.

John


John