i've got my hearth pad almost built and was wondering about trimming the outside edges.i built the pad 1" larger than required in every direction,and would like to trim it in oak to match my floors.as long as i'm out past the required clearances am i ok to trim the pad in wood?i have a friend who's a fireman in a different town,and he seems to think my local fire inspector will refuse it with wood trim.thoughts?