I do not monitor this group on a regular basis. Please excuse me if this subject has been discussed before.
Watching Norm Abrams' show on TV, a couple of time he has referred to the width of a sheet of plywood. He says that a piece 3/4 of an inch thick these days is about 1/32 of an inch off.
Comparing my regular ruler with a metric scale, I see the difference between 3/4" and 2cm (or 20mm as the architects say) is just about 1/32 of an inch.
So it appears that Norm is working partly in metric units these days. Think this could be so?
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