Sequence, originally published in 1995 by Jax, Ltd., has stuck around for three decades by combining a simple connect-five mechanic with the familiar feel of a standard deck of playing cards.
That familiarity is actually part of the sizing confusion, since the board itself is printed with a 10-by-10 grid of card images, which makes buyers assume the physical cards must match a trading card's footprint.
They don't, and that mismatch is worth catching before ordering sleeves rather than after a box of the wrong size arrives.
Here's the real card dimension, the full count across both decks, and an honest answer on what EVORETRO can and can't offer for a perfect factory fit.
Sequence's playing cards measure 56mm by 87mm, confirmed via sleeveyourgames.com's dedicated Sequence sleeve database. That's the classic poker and bridge playing-card footprint, not the wider 63.5mm by 88-89mm standard used by most trading card games like Pokemon or Magic.
The gap is small on paper, roughly 7mm narrower in width, but it's consistently enough that a sleeve built for the wider trading-card size leaves a Sequence card with real side-to-side slack rather than a snug fit.
Sequence ships with two complete standard 52-card decks, for 104 cards total, with no jokers included. The board itself displays all of those cards except the Jacks in its 10-by-10 grid pattern, since two-eyed and one-eyed Jacks each play a special wild-card role rather than occupying a board space.
That two-deck structure is also a convenient natural division for storage, since each deck can be kept and sleeved as its own self-contained 52-card set rather than treating all 104 cards as one undifferentiated pile.
EVORETRO's current sleeve lineup is built around the wider 63.5mm standard trading-card footprint, which covers most TCGs but doesn't match Sequence's narrower 56mm by 87mm playing-card size exactly. A standard outer sleeve will technically fit over a Sequence card, but with noticeable slack along the width.
That's worth stating plainly rather than suggesting an imperfect match is a factory-exact fit. A dedicated 56mm by 87mm playing-card sleeve from a specialty board-game sleeve brand remains the only true exact-fit option for buyers chasing a perfectly snug result.
EVORETRO's Perfect Fit Sleeves Inner Card Protector, designed to hug a card more tightly than a standard outer sleeve, is the more practical choice for Sequence's narrower cards. It won't replicate a factory-cut 56mm by 87mm sleeve exactly, but it meaningfully closes the gap a standard-width sleeve leaves open.
For a game that gets shuffled and dealt as often as Sequence, that tighter hold matters more than it would for a card that mostly sits untouched in a box. That frequent handling is exactly the scenario a snugger inner sleeve is built for, since a loose sleeve tends to work itself partway off a card over dozens of shuffles rather than staying put.
Every round of Sequence involves dealing a full hand, playing cards onto the board, and discarding into a pile that gets reshuffled once the deck runs out, repeating that cycle for the length of the game. That constant handling wears soft corners and edges into unprotected playing cards faster than a game where players mostly hold a static hand.
Because Sequence is built from genuine playing-card stock rather than thicker proprietary board-game cardstock, it's also somewhat softer to begin with, which makes early protection more worthwhile than it might be for a game using heavier card stock from the start.
A 104-card two-deck set needs more room than the smallest storage options are built to hold, especially once sleeved. The EVORETRO Plastic Deck Box, built from 0.7mm durable polypropylene and sized for 100 standard cards, comfortably handles one full 52-card deck with room for a handful of extras, making it a natural fit for splitting the two decks one box each.
Keeping the two decks in separate, clearly labeled boxes also avoids accidentally mixing them during setup, which matters less for gameplay itself but keeps a sleeved set organized over time. Labeling each box by deck letter or color, if the printing on the cards allows it, makes it even faster to confirm both full decks are accounted for before a game starts.
56mm by 87mm, the standard poker and bridge playing-card size.
104 cards total, two complete 52-card decks with no jokers.
Not currently; the Perfect Fit Sleeves inner protector is the closest available option.
They're genuine playing-card stock, reshuffled and redealt constantly throughout every game.
Give your two decks a tighter hold with EVORETRO's Perfect Fit Sleeves Inner Card Protector, the closest fit available for this narrower playing-card size.
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