How-to guide

Card thickness (pt) explained: which holder fits a thick card?

By MyCardBroker · Updated

What "pt" means

Card thickness is measured in points (pt). One point is 1/1000 of an inch.

Most base cards are thin. Patch, relic and memorabilia cards are much thicker.

How to find your card's thickness

Measure the card with a caliper, or check the pt size printed on holders that fit similar cards.

When in doubt, test the fit before forcing a card in.

Matching the holder

The holder's pt rating should match the card. Too tight can bend corners; too loose lets the card slide around.

Screwdowns and display holders

One-screw holders come in pt sizes for thick cards. Acrylic holders are a good choice for display.

Sleeve first

Put thick cards in a thick-card sleeve before they go in the holder.

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Frequently asked questions

What does 35pt mean?
It means 35 thousandths of an inch thick; holders are labeled by the thickest card they fit.
Can I put a thin card in a thick holder?
It fits, but the card can slide around. Choose the holder closest to the card's thickness.

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