i have an ok today card, but its graded so couldn't tell ya on that one. never touched it.
but they are thicker than the standard magazine/newspaper stock. also a lil glossier than a std magazine page.
again it is a 3 page fold out (9 cards per sheet) so it's not the standard stock of the rest of the mag.
here's that ok card and also an example of a hand-cut card that's graded but w/ the "hc" designation.