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Grading & condition

Card Supplies Calculator

Supplies are the cost nobody budgets for and everyone underestimates. Give it the size and shape of your collection and this returns the quantities to buy, how much it costs, and what protection actually works out to per card.

What you are storing

Anything above a few dollars: sleeve plus toploader.

Sets and player collections you want to look at.

Prices you pay — override with your own

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Used to show supplies as a share of what they protect.

— to store the collection properly

Shopping list.
Item Quantity Packs to buy Cost What it is for

The three tiers of protection

Storage is a triage problem, not a shopping problem. Almost every collection has three populations, and treating them identically wastes money at one end and risks cards at the other.

  • Bulk. Thousands of commons worth cents. A cardboard row box and nothing else. Sleeving bulk costs more than the bulk.
  • Binder cards. Sets and player runs you want to look at. Side-loading pages in a padded binder; never a three-ring binder for cards you care about, because the rings dent everything nearest the spine.
  • Individually valuable. Penny sleeve first, then a toploader or one-touch. The sleeve exists so the card never touches the rigid holder, which is what causes edge wear when a card slides in and out.

Rules of thumb the calculator uses

penny sleeves = valuable cards + binder cards + 10% spares toploaders = valuable cards + 5% spares 9-pocket pages = ceil(binder cards ÷ 9), plus a page per 20 for growth binders = ceil(pages ÷ 60) row boxes = ceil(bulk cards ÷ 800)

The spares matter. Penny sleeves split, and the moment you run out mid-session is the moment a card gets handled bare. Buying 10% over is cheaper than the alternative.

What actually damages cards in storage

  • Sunlight. The fastest way to fade a card. Binders on a shelf near a window lose colour within a year.
  • Humidity. Cardboard absorbs moisture and warps. Lofts, garages and basements are the three worst places in a house.
  • PVC. Old soft plastics containing PVC leach plasticiser onto the card surface over years. Anything sold today for cards is PVC-free; anything inherited from the 1990s might not be.
  • Overstuffed toploaders. Forcing a sleeved card into a snug toploader is a leading cause of the corner damage collectors then blame on shipping.
  • Weight. A stacked column of full row boxes puts real pressure on the cards at the bottom.
Perspective on the cost. Supplies typically run 1–3% of a collection's value. Against grading, which is $15 to $80 per card, protecting the raw cards well is the cheapest thing a collector ever buys — and it is what preserves the grade you might eventually pay for.

Questions people ask about this

Do I need to sleeve every card?

No. Sleeve the cards you would be annoyed to damage — anything above a few dollars, plus anything going into a binder where it will be handled. Bulk commons in a row box are fine unsleeved; the sleeves would cost more than the cards and take up the space of another box.

Penny sleeve inside the toploader, or straight in?

Always the sleeve first. A card slid directly into a rigid toploader takes edge and corner wear every time it moves, and the friction is exactly at the corners graders examine. The sleeve is the wear surface, and it costs under two cents.

How many cards fit in a storage box?

A standard row box holds about 800 unsleeved cards, or roughly 550 sleeved. A 3,200-count box takes four rows. Sleeving costs you about a third of the capacity, which is the real reason not to sleeve bulk.

Are three-ring binders bad for cards?

For cards you care about, yes. The rings press against the innermost pocket column and dent cards over time, and the pages themselves can shift under weight. Padded, ringless side-loading binders avoid both problems and cost a few dollars more once.

Where these numbers come from

Rates on this page were last checked against the published price lists on . Grading companies change fees and pause tiers without notice — confirm the total on the submission form before you pay.