On 2005-03-02, homeowner wrote:

Yeah, my rough tread is 1" thick. But I was thinking to wrap the
laminate around nose edge: 5/16 on top, 5/16 at bottom, and 1/4 or
so of the corner trim thickness. That will add to about 2" total
thickness.

I would think that there is no need to wrap the underside of the rough
tread nose. In that case you would need a corner trim with an inside
depth of 1" (outside depth of 1 5/16" if the laminate is 5/16" thick).

Cheers, Wayne