> So, > what is the official, correct way to attach wiring to metal > studs? This might help: http://www.toolbase.org/PDF/DesignGuides/BuildersSteelStudGuide.pdf I've also seen a thing like a plastic staple with a sheet metal screws used, but no idea where to buy them. http://www.cssbi.ca/Eng/_pdf/House-Chapter6Final.pdf -- Randall