Standard 52-card Deck - Size of The Cards

Size of The Cards

The most common sizes for playing cards are poker size (2.5×3.5 inches (64×89 mm), or B8 size according to ISO 216) and bridge size (2.25×3.5 inches (57×89 mm)), the latter being narrower, and thus more suitable for games such as bridge in which a large number of cards must be held concealed in a player's hand. In most casino poker games, the bridge-sized card is used; the use of less material means that a bridge deck is slightly cheaper to make, and a casino may use many thousands of decks per day so the minute per-deck savings add up. Other sizes are also available, such as a smaller size (usually 1.75×2.375 inches (44×60.3 mm)) for solitaire, tall narrow designs (usually 1.25×3 inches (32×76 mm)) for travel and larger ones for card tricks. The weight of an average B8-sized playing card is 0.063 ounces (1.8 g), and a deck 3.3 ounces (94 g).