@Heritage 2008 posted:What gauge aluminum is used with the templates?
One of the West Coast builders used to use the thin roll aluminum designed for covering house trim work. As a side benefit it was wood grain embossed! A little tacky to me and probably too thin. You can get aluminum in like 1/16" (it probably goes by a gage?). HD/Lowes have it - it also comes in polished diamond plate.