Arkham Horror: The Card Game has grown into one of the deepest living card game campaigns on the market, and with that depth comes a genuinely practical question every new player eventually asks: what size are these cards, and which sleeves actually fit them? The good news is the answer is simple for most of your collection, with one notable exception worth knowing about before you buy.
Standard Arkham Horror LCG cards measure 2.5 inches by 3.5 inches (63.5mm by 88mm) - the same size as standard Magic: The Gathering and Pokemon cards. That means any quality standard-size sleeve fits the vast majority of your collection without any special sizing research.
The exception is a smaller format used for some investigator cards and certain accessory cards, which measure roughly 1.625 inches by 2.4 inches (41mm by 63mm). These mini cards need a genuinely different, smaller sleeve size, and standard sleeves simply won't fit them properly.
This guide covers both sizes in detail, the matte-versus-glossy decision for Arkham Horror's distinctive art style, and which EVORETRO products cover each format so you can sleeve your whole collection correctly the first time.
The overwhelming majority of Arkham Horror LCG's cards - player cards, encounter cards, location cards, and most scenario-specific cards - use the standard 2.5-by-3.5-inch size shared with Magic and Pokemon. This is good news for anyone who already owns standard sleeves from other games, since they'll fit Arkham Horror cards without any modification.
Because this is the size used for the bulk of your collection, it's worth prioritizing a bulk-pack sleeve purchase for standard cards before worrying about the smaller mini format, since you'll need far more of them.
Certain investigator cards and some accessory cards use a noticeably smaller 1.625-by-2.4-inch format, roughly the size of a mini tarot or mini playing card rather than a standard trading card. Standard sleeves are simply too large for these, so trying to force them in leaves the card loose and unprotected inside an oversized sleeve.
If you're new to the game, it's worth sorting your collection by card size before sleeving anything, so you don't accidentally buy only one sleeve size and discover the mismatch partway through the job.
Arkham Horror's card art leans heavily on moody, atmospheric illustration, and a glossy sleeve finish can create glare that washes out some of that detail under bright lighting, especially during photos or streamed play sessions. A matte finish keeps the artwork readable and reduces that glare noticeably.
Matte sleeves also tend to resist fingerprint smudging better than glossy ones, which matters for a game where cards get shuffled and handled constantly across a long campaign.
If you're just starting out, prioritize sleeving your investigator deck and any cards you'll be shuffling and handling repeatedly across a campaign before worrying about less-frequently-touched encounter cards. Heavily-handled cards show wear fastest.
As your collection grows across multiple expansions, buying sleeves in bulk packs rather than small quantities saves money and avoids repeated small purchases every time a new expansion arrives.
For standard-size Arkham Horror cards, EVORETRO's matte card sleeves are sized correctly and give you the glare-reducing finish that suits the game's art style well. For the smaller mini-card format, a snap-style mini card holder gives you a snug, protective fit that a standard sleeve simply can't provide.
Keeping both sizes on hand means you're covered no matter which cards a given expansion adds to your collection.
Sleeving is the first step, but a growing Arkham Horror collection eventually needs broader organization too - binders or boxes for unsleeved reference materials, and dedicated storage for the growing pile of expansion boxes. Sleeving solves the card-level problem; the rest of your collection needs its own plan.
Tackling sleeves first still makes sense, since card wear happens the fastest and is the hardest damage to reverse once it's done.
2.5 inches by 3.5 inches (63.5mm by 88mm), the same as standard Magic or Pokemon cards.
Yes, for the standard-size cards that make up most of the game.
Roughly 1.625 inches by 2.4 inches (41mm by 63mm), requiring a smaller sleeve size.
Matte is generally recommended since it reduces glare on the game's atmospheric artwork.
Get your whole Arkham Horror collection properly protected with sleeves sized for both formats from EVORETRO's Sleeves Collection.
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