Deck boxes
Sized by sleeved card count, not by deck size.
A deck box is sized by how many sleeved cards it holds, not by how many cards a deck contains — and sleeving is what determines the difference. BCW's large deck case is stated to hold 120 single-sleeved or 100 double-sleeved cards, so the same box loses about a sixth of its capacity to a second layer of plastic.
Capacity is a sleeving figure, not a card count
The number on a deck box is the most misread specification in card storage. A box advertised at 100 cards does not hold 100 cards — it holds 100 cards sleeved a particular way, and manufacturers state which.
BCW's large deck case is described as holding up to 100 double-sleeved or 120 single-sleeved cards — the same box, two numbers, a difference of about a sixth. Manufacturers that publish figures for triple-sleeved decks quote a third tier lower still.
So the arithmetic runs backwards from how people shop. Decide how you sleeve, then read the matching figure, then buy. A 60-card deck double-sleeved needs more box than a 60-card deck single-sleeved, and considerably more than an unsleeved one.
The same rule scales to storage boxes
Bulk storage boxes are quoted the same way and the gap is larger. BCW's 1000-count gaming box is stated to hold about 1000 unsleeved gaming cards or about 550 sleeved ones — sleeving nearly halves it.
This is worth knowing before buying storage for a collection you intend to sleeve. A 1000-count box for 1000 sleeved cards is roughly half the storage you need, and cards packed into a box that is too small for them are cards under pressure.
The counts also assume cards standing normally rather than jammed. Leaving a box short of full is not wasted space; it is what lets you get cards out without dragging them against their neighbours.
Fit matters more than capacity
An underfilled deck box is worse than an overfilled one in a specific way: cards slide. Every time the box moves, a loose deck shifts inside it, and the cards at the ends take the impact against rigid plastic.
This is what dividers are for, and why most deck cases ship with one. A divider takes up the slack so the deck sits snug regardless of how full the box is.
Overfilling has the opposite failure — cards are compressed and are hard to remove without bending, which is exactly when damage happens. The target is snug, not packed.
Material, for boxes that store rather than carry
Deck boxes are usually polypropylene, and BCW describes its deck cases as acid-free, archival-safe polypropylene. That is the same stable plastic conservation guidance recommends for long-term contact, alongside polyethylene and polyester.
PVC is the one to avoid for anything long-term: it generates acids as it degrades and can transfer images off printed items. For a box a deck lives in year-round, this is worth the ten seconds it takes to check.
Cardboard storage boxes are the usual choice for bulk and are fine, provided they are acid-free and the location is dry. The box is not what fails in a damp room — the cards are.
Common questions
- How many cards does a deck box hold?
- It depends on sleeving, and manufacturers state a figure for each. BCW's large deck case holds up to 120 single-sleeved or 100 double-sleeved cards — so the same box loses about a sixth of its capacity to a second layer of plastic.
- What size deck box do I need for a double-sleeved deck?
- Read the double-sleeved figure, not the headline number. Double-sleeving costs roughly a sixth of a deck box's capacity, so a 100-card double-sleeved deck needs a box rated around 120 single-sleeved.
- How many sleeved cards fit in a 1000 count box?
- About 550. BCW states its 1000-count gaming box holds roughly 1000 unsleeved cards or about 550 sleeved — sleeving nearly halves bulk storage capacity.
- Are deck boxes safe for long-term storage?
- Polypropylene ones are — BCW describes its deck cases as acid-free, archival-safe polypropylene, which matches conservation guidance for long-term contact. Avoid PVC for anything a card lives in year-round.