I have an Engineer/Architect who insist on using part of a removable trim piece as a cover plate for switch or receptacle openings. He does a super job of routering out the wood "plate" and lining the side facing the switch with metal duct tape. I'm trying to understand why this should or should not be acceptable. I don't find where this needs to be a "listed" product nor are boxes required to be listed. Have any of you guys/girls run into this in your travels?
