In article
le.rogers.com,
"Upscale" wrote:

That leads me to ask. Do most/many wood dealers in the US stock actual 3/4"
plywood or have you been inundated with metric sizes like we have been up
here in Canada?

You're right, it's not really 3/4". It's generally marked with some
sort of whacko size like 23/32nds, which is a couple of smooches plus an
RCH shy of 3/4". Does it work out to something exact in metric like
18mm? Maybe. Beats me.