In article , "longshot" wrote:
I think metal studs are only designed to carry a vertical load, by attaching
the plywood , you are spreading that load out over a 4' by 8' span

And using more screws to attach it. While the weight of a cabinet might be
enough to pull four screws out of the metal studs, it will not pull four
properly-sized screws out of plywood, nor will it be enough to pull out, say,
two dozen screws holding the plywood to the studs. (Numbers picked out of the
air to illustrate the point. Direct relationship to reality should not be
assumed.)

--
Regards,
Doug Miller (alphageek at milmac dot com)

Nobody ever left footprints in the sands of time by sitting on his butt.
And who wants to leave buttprints in the sands of time?