Dominion is the game that more or less invented the deck-building genre, and more than fifteen years after its original release it is still one of the most-played card games on tables that have never touched a traditional TCG.
That popularity creates a real storage problem, since Dominion's whole design revolves around shuffling a personal deck over and over again within a single game.
Buyers searching for the right sleeve size run into a surprising amount of confusion online, since some older threads claim Dominion uses an odd, non-standard card size.
Here's what the cards actually measure, how large a full collection gets once expansions enter the picture, and which sleeve and box setup actually survives regular play.
Despite the persistent online confusion, Dominion's cards measure 2.5 by 3.5 inches (63.5mm by 89mm), which is standard poker size and identical to the dimensions used by most mainstream trading card games. A long-running BoardGameGeek thread on this exact question confirms the standard sizing across both the original Rio Grande Games release and the current second edition.
The confusion largely comes from Dominion's unusually thin card stock compared to a TCG booster pack card, which makes a sleeved Dominion card feel noticeably different in hand even though the footprint is identical. Buying standard-size sleeves is the correct call; buying a specialty size because a card feels different is a wasted purchase.
The Dominion second-edition base game alone ships with 500 cards: 130 basic Treasure cards, 48 basic Victory cards, 30 Curse cards, and 262 Kingdom cards covering the game's 26 core strategy cards, plus randomizer and reference cards. That is already a sizable deck-builder before a single expansion is added to the shelf.
Individual expansions add their own large card counts on top of that base, with Intrigue's second edition shipping 300 cards and Nocturne shipping a full 500 more. A collector running even two or three expansions alongside the base game can easily be managing well over a thousand cards split across multiple storage boxes.
Unlike a game where players hold a static hand all game, Dominion has players shuffling their personal discard pile back into their draw deck multiple times per session, every session. That repeated shuffling is exactly the kind of handling that wears down unprotected cardstock fastest, since each shuffle bends and flexes every card in the stack.
Over dozens of play sessions, an unsleeved Dominion deck develops soft corners and visible wear well before a comparable static-hand card game would. This is the single biggest reason Dominion shows up so often in sleeve-buying searches despite using an entirely standard card size.
For a game built around constant reshuffling, finish matters as much as size. Matte sleeves like the EVORETRO Matte Card Sleeves Standard Size shuffle more smoothly and resist the glare and sticking that glossy finishes can develop after repeated handling.
Glossy sleeves can feel slightly tacky once oils from hands build up over dozens of plays, which becomes noticeable exactly in the high-shuffle moments Dominion is built around. A matte, glare-free finish keeps the deck feeling consistent game after game rather than degrading session by session.
Because a single expansion can add 300 to 500 cards on its own, a standard 100-card deck box is only going to cover a fraction of a real Dominion collection. Collectors running the base game plus even one or two expansions need a bulk solution rather than a per-deck box.
The EVORETRO Magnetic Card Deck Storage Box, which holds up to 1,800 cards, is sized for exactly this kind of growing Kingdom card pool, letting a collector keep the entire base game plus multiple expansions organized in one place instead of scattered across several smaller boxes.
Trying to sleeve an entire Dominion collection in one sitting is a common way to abandon the project halfway through. Sleeving the base game first, then tackling each expansion as it's added to rotation, keeps the task manageable and ensures the cards actually seeing table time get protected first.
Color-coding sleeve batches by expansion, or simply sleeving an expansion's cards immediately on unboxing rather than after the first few plays, avoids the gap where a brand-new set of Kingdom cards takes its first wear unprotected.
Standard poker size, 2.5 by 3.5 inches (63.5mm by 89mm).
The second edition base game includes 500 cards total.
Yes, every Dominion expansion uses the same standard poker-size cards as the base game.
Matte, since it shuffles more smoothly through the game's constant deck-reshuffling.
Protect a deck that gets shuffled every single turn with EVORETRO's standard-size matte card sleeves, built for exactly this kind of heavy handling.
For the broader theory behind board game sleeve sizing, see our Board Game Card Sleeve Buying Guide, and for how Dominion compares to fixed-deck alternatives, see Deck-Building Games vs. Living Card Games.
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