Sleeve Size Mistakes: How to Match Sleeves to Your Cards

Quick answer

Measure the card's width and height in millimeters, then compare those numbers to the sleeve's stated dimensions, not the game's name or the box's card count. If a card bows, the sleeve is too narrow; if it slides around freely or the opening gapes, the sleeve is too wide. Fix a wrong fit by matching the exact millimeter range before buying another pack.

Why game-name sizing fails

Sleeve shopping goes wrong when you search by game title instead of card dimensions. Two games can both use "standard" cards and still differ by a millimeter or two, and that difference decides whether a sleeve feels snug or sloppy. A card sleeve size guide only works if it starts with the physical card, not the box. Measure a single card from your copy with a ruler or calipers: width first, then height, in millimeters. Write both numbers down before you open a store page.

How to measure a card in 30 seconds

Lay the card flat and measure across the shortest side for width, then the longest side for height. Avoid measuring a sleeved card, since the sleeve adds thickness and can throw off your reading. If you own a game with multiple card sizes, measure one of each size and label them. A mini card and a poker card in the same box will not share a sleeve, and mixing them up is the most common cause of a wrong-size purchase.

The three symptoms of a wrong fit

A card that curves or bows inside the sleeve means the sleeve is narrower than the card. A card that slides out when you tilt the sleeve means the sleeve is too wide or too tall. A sleeve that splits at the seam after a few shuffles usually means the card is forcing the sleeve beyond its intended dimensions. Each symptom points to a different correction, so identify which one you have before ordering replacements.

When to stop and choose a different option

If your measured card falls between two listed sleeve sizes, stop and pick the larger size only if the card is not bowing. If the card already bows in the smaller size, the larger size will not fix the curve; you need a sleeve whose width matches the card exactly. If no listed sleeve matches your measurement within about one millimeter, that game may use a non-standard card size, and forcing a standard sleeve will damage cards over time. In that case, look for a sleeve set made for that specific game or accept that unsleeved storage may be the better option.

Game-specific sleeve sets remove the guesswork

Some publishers release sleeve sets sized to a single game's card mix, which skips the measuring step entirely. Graft Sleeves cover all 130 cards in Graft and are compatible with the standard card sizes used in that game. Veiled Fate Sleeves include 202 clear sleeves across three sizes: 46 super large (89 x 146 mm), 55 poker (63.5 x 88.9 mm), and 101 mini (44 x 67 mm). That set covers every card in the Veiled Fate base game or the Tribunal expansion, but one set is not enough to sleeve both the base game and Tribunal. If you own both, buy two sets rather than trying to stretch one.

Diagnosis: match the symptom to the fix

• Card bows or curves inside the sleeve: The sleeve is narrower than the card. Measure the card width and compare it to the sleeve's stated width in millimeters. Choose a sleeve whose width matches or slightly exceeds the card width. Do not force the card.
• Card slides out or the opening gapes: The sleeve is wider or taller than the card. This causes cards to fall out during shuffling or storage. Move down to a smaller sleeve size that still clears the card's height.
• Sleeve seams split during shuffling: The card is stretching the sleeve beyond its intended dimensions, often because the sleeve is too narrow or the card is unusually thick. If the card is standard thickness, switch to a wider sleeve. If the card is unusually thick, look for a heavier-duty sleeve.
• Measurement falls between two sizes: No listed sleeve matches the card within about one millimeter, or the card is non-standard. Stop and look for a game-specific sleeve set. If none exists, unsleeved storage may be the better choice.

Sleeve sets that match specific games

• Veiled Fate Sleeves (Base Game or Tribunal Expansion): 202 clear sleeves for every card in the Veiled Fate base game OR Tribunal expansion, across three sizes: 46 super large (89 x 146 mm), 55 poker (63.5 x 88.9 mm), and 101 mini (44 x 67 mm). One set is not enough to sleeve both the base game and Tribunal. If you own both the base game and Tribunal, plan for two sets. If you own only one, a single set covers every card with some to spare.
• Graft Sleeves: Clear protective sleeves designed to cover all 130 cards in the game Graft, compatible with the standard card sizes used in Graft. A game-specific count means you do not need to measure or estimate sleeve quantities for Graft.