Sleeve Sizes Explained: Finding the Perfect Fit for Your Cards
By IV Studio — Shop Tend, Moonrakers, Veiled Fate, and Mythic | Published: 2026-09-08
Category: Buying Guides
Learn how to measure and match card sleeve sizes to your board game cards. Get practical tips for choosing the right fit, including expansion sleeves.
Quick Answer
To find the right card sleeves, measure your cards' height and width in millimeters, then match them to a sleeve size that is slightly larger (usually 1-2 mm) to avoid bending. For board games, standard sizes like 63.5x88 mm (poker) and 44x68 mm (mini European) cover most cards, but always check the game's manual or community resources for exact dimensions.
Choosing the right card sleeves can be surprisingly tricky. With so many sizes and terms like 'standard' and 'mini European,' it's easy to end up with sleeves that are too loose or too tight. This guide breaks down the basics of card sleeve sizes so you can protect your games without the guesswork.
Whether you're sleeving a new expansion or a beloved classic, understanding how sleeve sizes work will save you time and money. We'll cover how to measure cards, what the common size names mean, and how to apply this knowledge to games from IV Studio and beyond.
Understanding Card Sleeve Sizes
Card sleeves are typically measured in millimeters and refer to the inner dimensions of the sleeve. The two most common sizes for board games are 'standard' (about 63.5 x 88 mm) and 'mini European' (about 44 x 68 mm). However, many games use non-standard sizes, so measuring is essential.
To measure a card, use a ruler or caliper. Place the card on a flat surface and measure the height and width, excluding any rounded corners. Then, look for sleeves that are 1-2 mm larger in each dimension. This allows for the card to slide in easily without being too loose.
- Always measure both height and width, as some cards are square or oddly shaped.
- If a sleeve is too tight, it can bend cards; if too loose, it offers less protection.
Common Sleeve Sizes and Their Uses
The most common sleeve size is the 'standard' or 'poker' size, used for games with cards similar to playing cards. Many card games, including some from IV Studio, use this size. Another popular size is the 'mini European' or 'mini USA' for smaller cards, often found in games like Ticket to Ride.
Some games have unique card sizes, such as square cards or oversized cards. In these cases, you may need to look for specialty sleeves or use a generic size that is close but not perfect. For example, the Moonrakers: Binding Ties Expansion includes a mix of poker and square cards, so you need a sleeve pack that covers both.

- Check the game's box or manual for card dimensions if available.
- When in doubt, buy a pack that explicitly states it includes multiple sizes.
How to Choose the Right Sleeves for Your Game
Start by identifying the card sizes in your game. If you have an expansion, verify whether it uses the same sizes as the base game. For example, the Moonrakers: Binding Ties Expansion Sleeves are designed to fit all cards in that expansion, with over 20 poker and 20 square card sleeves included. This is a convenient option if you want a single purchase that covers mixed sizes.

Consider the thickness of the sleeves. Thicker sleeves offer more protection but can make shuffling harder and take up more space in the box. Thinner sleeves are easier to shuffle but provide less rigidity. Your choice depends on how often you play and how much you value card preservation.
- If you play frequently, invest in thicker sleeves for better durability.
- If storage space is tight, thinner sleeves may be a better fit.
Decision Rules for Sleeve Buying
- Measure first: Always measure a sample card from your game before buying sleeves. Use a ruler and note the dimensions in millimeters. This prevents wasted purchases.
- Match size names carefully: Size names like 'standard' can vary between brands. Always check the exact millimeter dimensions in the product description. Don't rely solely on 'standard' or 'mini' labels.
- Consider mixed sizes: If your game includes different card sizes, look for a sleeve pack that includes multiple sizes, like the Moonrakers: Binding Ties Expansion Sleeves. This saves time and ensures consistent protection.
Product Facts
- Moonrakers: Binding Ties Expansion Sleeves: Enough sleeves for every card in the Binding Ties expansion - plus some extras. Over 20 poker card and 20 square card sleeves. This pack is a hassle-free solution if you need sleeves for a mix of card sizes. Instead of buying separate packs, you get exactly what you need for the expansion, with extras for mistakes or future use.
- Fractured Sky: Fractured Sky places you at the helm of an airship expedition... Standard edition has cardboard ships & tokens. Knowing that the standard edition uses cardboard components helps you decide if you want to upgrade with metal tokens or other accessories for a more premium feel. However, it doesn't specify card sizes, so you'll need to measure cards before buying sleeves.
Fit Guidance
Best for
- Gamers who want to protect standard-sized cards (poker size) in games like Moonrakers.
- Players who need a convenient pack covering multiple card sizes in an expansion.
Not for
- Games with oversized or uniquely shaped cards that don't fit standard sleeves.
- Players who prefer penny sleeves for ultra-cheap protection, as these are typically thinner and less durable.
Finding the right sleeve size doesn't have to be a chore. By measuring your cards and understanding the common size categories, you can confidently choose sleeves that offer the right balance of protection and playability. Whether you're sleeving a new expansion or refreshing an old favorite, a little knowledge goes a long way in keeping your cards in great shape.



