How to Start a K-pop Photocard Collection
A friendly, in-depth beginner’s guide to sizes, protection, storage, and product recommendations from KpopStationery.
1. Know Your Photocard Sizes
Before buying sleeves or binders, measure your photocards. Sizes can vary by album edition, region, or merch release. Below are common sizes and when you might see them.
| Type | Approx dimensions | When you'll see it |
|---|---|---|
| Standard album photocard | ~55 × 85 mm to ~57 × 88 mm | Most regular album photocards |
| Larger album / merch photocard | ~61 × 91 mm | Event cards, merch photos, limited editions |
| Japanese size | ~58 × 98 mm | Japanese-market albums and special merch |
| Oversized / postcard | ~103 × 153 mm | Postcard-style limited editions |
| Mini / ID | ~33 × 43 mm or ~38 × 48 mm | ID-style photosets and small merch |
Tip: Always measure when possible — "standard" can shift by a millimeter across releases.
2. Choose the Right Sleeves (Protection Matters)
Protection is essential. Good sleeves prevent scratches, fingerprints, and environmental damage. Look for:
- Snug but not tight: Allow 1–2 mm of margin so cards slide in easily.
- Acid-free / PVC-free material: Prevents yellowing or long-term degradation.
- Thickness: Standard sleeves (~100μ) are fine for most cards; premium/thicker sleeves for grails.
- Decorative sleeves: Fun for display — just make sure the inside surface is smooth and won't scratch the card.
For more detail about sleeve material and sizes, check our full guide on sleeve selection in the blog section of KpopStationery.
3. Matching Sleeves to Card Sizes — Recommendations
Below are practical sleeve recommendations you can use right away. Each product link goes to KpopStationery so you can add items to your cart instantly.
Standard 57 × 88 mm Clear Premium Sleeves
Perfect for most album photocards — snug fit and clear finish for display.
Japanese Size 58 × 98 mm Clear Sleeves
Great for slightly taller Japanese album photocards or certain merch cards.
Large 65 × 91 mm Oversized Sleeves
Use these for merch cards, cards with wide borders, or for double/triple-sleeving.
Binders (A5 & A4)
Choose A5 for portability and curated pages, or A4 for large collections and full sets.
4. Storage & Display: Binders, Pages, and Layouts
How you store and display affects both the look and longevity of your collection.
- Binder Choice: A5 for favorites and portability; A4 for extensive collections.
- Page Formats: 2-pocket or 4-pocket pages for A5; 9-pocket pages for A4.
- Toploaders & Rigid Protectors: Use these for grail cards or fragile prints.
- Organization: Sort by artist, album, or theme; use divider tabs or color-coded pages.
Display ideas: a rotating "favorites" page at the front of your binder, flat-lay photos for socials, or a small desktop frame for one special card.
5. What to Buy First — Starter Set Recommendations
To get started without overbuying, pick a few essentials. Here are three binder levels to choose from depending on your collection goals:
Beginner: A5 Moment Binder
Affordable, lightweight, and easy to carry. PVC case with lots of room to decorate.
Intermediate: A5 Binder (Cardboard Case)
Sturdier with a protective cardboard case and a handy front pocket for extra storage.
Advanced: A4 Binder
Best for large collections. PVC case with front and side pocket for organization and extra storage.
6. Maintenance & Care — Keeping Your Collection Pristine
- Wash and dry your hands before handling cards to reduce oils and fingerprints.
- Store in a cool, dry place away from direct sunlight to avoid fading.
- Don't overfill sleeves or pages — avoid bending or pressure on corners.
- Check sleeves and binders periodically for dust, yellowing, or wear; replace when needed.
7. Cost & Budgeting Tips
Start small and prioritize what needs premium protection. Bulk sleeve packs reduce per-card cost. Save premium sleeves and rigid protectors for your rarest/grail cards.
Final Thoughts
K-pop photocard collecting is as much about the joy of owning the card as it is about displaying it, protecting it, and curating a collection that reflects you. Getting the sizes right, choosing good protection, organizing cleanly with binders/pages, and caring well will help your collection stay beautiful for years. If you’re just starting out, a setup like: • Standard clear sleeves (57×88 mm) • A binder (A5 or A4 depending on how many cards) • A few decorative or holographic sleeves for your favorites …will cover most of what you need. Then you can expand as your collection grows.
Frequently Asked Questions (FAQ)
What size sleeves fit K-pop photocards?
Most K-pop photocards are around 55x85mm. Popular sleeve sizes are 57x88mm (tight fit) and 61x91mm (standard fit). Oversized cards may need 65x91mm sleeves.
Do I need both sleeves and toploaders?
Yes. Sleeves are great for everyday storage, while toploaders provide maximum protection during trades or transport.
Are A5 and A4 binder pages interchangeable?
No, A5 pages fit only A5 binders, and A4 pages fit A4 binders. Be sure to match your pages with the correct binder size.
What’s the best way to decorate my binder?
Fans use stickers, washi tape, and custom photocards. Kpop Stationery stickers are designed for this purpose and won’t damage binder surfaces.
How should I store rare or signed photocards?
Always double-sleeve and place them in a toploader. For extra protection, keep them in a binder that stays in a cool, dry place.
Can I use regular office binders for photocards?
You can, but they may not fit photocard-specific pages. We recommend binders designed for photocards for the best fit and protection.
What’s the difference between single-sided and double-sided pages?
Single-sided pages display cards on one side, while double-sided pages allow you to store cards front and back. Double-sided is more space-efficient.
How do I prevent my cards from warping?
Keep them away from humidity, avoid stacking heavy items on top of binders, and always store cards in sleeves or toploaders.
What’s the best way to start if I’m on a budget?
Start small with essentials: clear sleeves, a binder, and some binder pages. You can expand with toploaders and deco items later.

