SGC/PSA grading of undersized cards

[steve B]

If it's under the minimum size SGC will either slab it as an "A" or return it with a slip indicating that it was under minimum size. I have mine returned unslabbed since the "A" grade includes a lot of stuff - Undersize, trimmed, altered, miscut.....I've only sent in as specials, I'm not sure if they'd grade an undersize but not trimmed card as a card requiring a custom insert.
For over size examples they'll adjust the insert to fit, at least that's how they said they'd handle it a couple years ago when I dropped mt first few off at the shriners show.

I've never done PSA, so I don't know how they do it. Way back, I asked about cards that weren't consistent like 81 Donruss (Which should give you an idea how long ago that was) And they said they wouldn't grade undersize, and couldn't grade oversize since they wouldn't fit the holder. I think on oversize they use a plastic sleeve inside a larger holder now. Back then, it was just 2 size holders.

Steve B