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How to Sleeve Board Game Cards (Step by Step)

The actual process — measure, buy enough, sleeve without bending cards, and make sure the box still closes.

Before you start: measure and count

Measure a card in millimetres and buy the matching sleeve size (sizing up to the nearest standard, never down). Count every card you'll sleeve — including expansions — and buy a little extra in one batch, since sleeve finishes vary between packs and a mismatched back can become a marking. Doing this before you open the first pack saves the most common sleeving headache.

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Penny Sleeves (bulk, acid-free)
Bulk soft sleeves for protecting board game cards that get shuffled every session.
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Sleeve without bending the cards

The goal is to get the card in flat, with no bowed corners.

  • Hold the sleeve with the open end up and the card squared to it.
  • Slide the card straight in — don't force a corner first, which folds the tip.
  • Let the card drop to the bottom; tap the stack on the table to seat them.
  • Work in small batches so you're not fighting a slippery pile of loose sleeves.

Check the box still closes

Sleeving adds height to every deck, and card-heavy games can overflow the insert or push the lid open. Sleeve a test handful first and set them in the box to gauge the added bulk. If it won't close, switch to thinner sleeves, sleeve only the high-shuffle cards, or store the sleeved decks in a separate card box.

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Premium Clear Card Sleeves (standard size)
Archival, no-haze sleeves sized to standard board game cards (63.5×88mm) for mixed collections.
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Shuffle and store sleeved cards

Fresh sleeves can stick together until they break in — riffle or shuffle them a few times before the first game. Store sleeved decks upright in the box or a card storage box rather than under a tight rubber band, which over time creases the end cards. Keep sleeved expansion cards the same brand as the base set so they shuffle in invisibly.

Frequently asked questions

How do you sleeve board game cards properly?

Buy the correct sleeve size for your measured cards, then slide each card straight into an open-end-up sleeve without forcing a corner first, which folds the tip. Work in small batches, tap the stack to seat the cards, and check the box still closes before sleeving the whole game.

Which way does the card go into the sleeve?

Hold the sleeve with the open end up and slide the card in squarely so it drops to the closed bottom. Feeding a corner in first is what bends and creases card tips, so keep the card flat and aligned as it goes in.

Do sleeved cards still fit in the box?

Sometimes — sleeves add height, and card-heavy games can overflow the insert or stop the lid closing. Test a handful first; if it won't fit, use thinner sleeves, sleeve only the cards that get shuffled, or store the sleeved decks in a separate card storage box.

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Board Game Card Sleeves

Sleeve sizes, micron thickness, and when penny sleeves are fine versus when you want premium clear.

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