they make boxes for outlets that are made out of metal ... I don't think that conductivity is a factor edit here is another example of a wooden faceplate: http

they make boxes for outlets that are made out of metal ... I don't think that conductivity is a factor edit here is another example of a wooden faceplate: https://www.amazon.com/Franklin-Brass-W10848-Decorator-Unfinished/dp/B01H3LW0YC https://www.amazon.com/Franklin-Brass-W10848-Decorator-Unfin...