Troubleshooting Star Realms Setup: What to Do When Your Cards Don’t Fit
By Wise Wizard Games | Published: 2026-09-07
Category: Guias Práticos
Cards not fitting in your Star Realms box? Learn to diagnose the issue and fix it with the right sleeves and storage solutions.
Quick Answer
If your Star Realms cards don’t fit in the box, the usual culprit is using sleeves that are too thick or too large. Check your sleeve size and consider using thinner sleeves or a dedicated storage solution to keep your game organized.
You’ve just picked up a new Star Realms set, but when you try to pack the cards back into the box, they don’t fit. This is a common frustration for many players, especially after sleeving their decks for protection.
In this guide, we’ll walk you through the typical causes of card fit issues in Star Realms, how to diagnose the problem, and practical steps to fix it—so you can get back to playing without worrying about damaged cards or a messy box.
Understanding Why Your Cards Don’t Fit
The most common reason cards don’t fit is that you’ve added sleeves that increase the deck’s thickness. Standard sleeves are about 67mm x 92mm, but their thickness can vary. If you’re using premium sleeves or double-sleeving, the extra bulk can make it impossible to close the box lid properly.
Another factor is the box insert. Many board game boxes have custom inserts designed to hold unsleeved cards snugly. Once you add sleeves, the cards no longer fit in the designated slots. This is especially true for the Star Realms Box Set, which comes with a specific insert that may not accommodate sleeved cards.

- Check if your sleeves are the correct size: 67mm x 92mm is standard for Star Realms.
- Consider the thickness: thinner sleeves take up less space.
Diagnosing the Problem: A Step-by-Step Approach
Start by removing all cards from the box and checking if they fit without sleeves. If they do, the issue is definitely the added thickness. If they don’t, you might have a damaged insert or a misaligned tray.
Next, measure your sleeved cards. Use a ruler to compare the height and width with the dimensions of the box insert. If the cards are even a few millimeters taller, they won’t sit flat. Also, check if the sleeves have a matte or glossy finish—matte sleeves can sometimes be slightly thicker, affecting fit.
- Try removing the insert and see if the cards fit in the box without it.
- Use a card storage box or deck box designed for sleeved cards.
Corrective Actions: How to Fix the Fit Issue
If you’ve confirmed that sleeves are the culprit, you have a few options. First, you can switch to thinner sleeves. For example, the Star Realms Sleeves (60) are a standard option that many players use, but if you find they’re still too thick, look for sleeves labeled as “thin” or “economy.”

Alternatively, you can remove the box insert and store the cards in a separate deck box or a larger storage solution. This gives you more flexibility and prevents the cards from being squeezed. If you prefer to keep everything in the original box, consider using a band or a small piece of foam to keep cards in place without the insert.
- Invest in a dedicated card storage box that can accommodate sleeved cards.
- If you’re using sleeves with a gloss finish, try matte ones—they might be slightly thinner.
When to Stop and Choose Another Option
Sometimes, no matter what you do, the original box just isn’t designed for sleeved cards. If you’ve tried different sleeves and still can’t get the lid to close, it’s time to stop forcing it. Forcing the lid can damage both the box and the cards.
At this point, you have two good choices: either keep your cards unsleeved and store them in the original box, or embrace a third-party storage solution. Many players prefer to keep their cards sleeved for protection, especially if they play frequently. In that case, a simple card binder or a deck box is a worthwhile investment.
- Don’t risk damaging your cards or box by overstuffing.
- Consider using a card binder for easy organization and protection.
Diagnosis: Is It a Sleeve Issue or a Box Issue?
- Symptom: Cards don’t fit in the box, lid won’t close, or cards are bent. Identify if the issue occurs only after sleeving.
- Likely Cause: Sleeves add thickness, or the box insert is too snug for sleeved cards. Measure your sleeved cards and compare with the box dimensions.
- Corrective Action: Switch to thinner sleeves, remove the insert, or use an alternative storage solution. If the problem persists, stop forcing it and consider a dedicated card storage box.
- Stop or Choose Another Option: If you’ve tried different sleeves and still can’t close the box, don’t force it. Use a card binder or deck box instead. Protect your cards without damaging the box.
Product Facts to Help You Decide
- Star Realms Sleeves (60): 60 count pack of plastic sleeves with a gloss finish. PVC and Acid Free. 67mm x 92mm 2.5 oz. Refer to our Sleeve Counts spreadsheet to determine how many sleeves you need. These sleeves are designed to fit Star Realms cards, but their gloss finish may add slight thickness. If you’re experiencing fit issues, this is a good starting point to check if they’re the cause.
- Hero Realms Sleeves (Pack of 60) Each: Protect your Hero Realms cards with these awesome Hero Realms sleeves! Featuring the Hero Realms card back as the art. 60 count pack of plastic sleeves with a matte finish on front and back. PVC and Acid Free 67mm x 92mm | 2.5 oz. Refer to our Sleeve Counts spreadsheet to determine how many sleeves you need. Matte sleeves may be slightly thinner than gloss ones, so if you’re looking to reduce bulk, these could be a better fit for your Star Realms cards as well.
Card fit issues are common but easy to solve once you understand the cause. By checking your sleeves and considering alternative storage, you can keep your Star Realms collection organized and protected. Remember, the goal is to enjoy the game without worrying about your cards.



