The hobby checklist keeps growing — sleeves, toploaders, team bags, tape, cardboard, mailers. Most card orders need four things: penny sleeves, a scale, postage, and the right envelope. Here's the honest list by shipment type, with the per-order math on everything else.
What you need depends entirely on what's going in the mail. Four shipment types cover nearly every card order a seller sends:
| Shipment | What you need | Ships as |
|---|---|---|
| 1–5 cards | Penny sleeve, toploader, PWE or eBay Standard Envelope | Letter, from $0.82 |
| 6–50 raw cards | Penny sleeves (optional), pocketed letter envelope, stamps | Letter, $0.82–$1.69 |
| High-value single | Sleeve, toploader, bubble mailer or small box, tracking | Package, $5.50+ all-in |
| Graded slabs | Fitted bag, bubble wrap, rigid box, void fill | Tracked parcel |
Two details worth knowing on the letter rows. First, a plain white envelope with a toploader inside is a gamble: rigid inserts make the piece non-machinable, which costs a ~46¢ surcharge or gets the letter reclassified as a package. The eBay Standard Envelope service is the exception — eBay's quoted caps are 15 raw cards per envelope (its own 3-pocket kit is built for 24), no more than two in toploaders, up to 3 oz, under 0.25" thick, no graded cards, with $20 of protection on a single order; details in our eBay Standard Envelope guide. Second, graded slabs never ship as letters at any weight; they fail the thickness and flexibility rules on arrival at the sorting machine. For high-value and slab shipments, USPS Ground Advantage includes tracking and $100 of included insurance for eligible merchandise — our trading card mailers guide compares the package options in detail.
The rest of this page is about the middle row — 6–50 raw cards — because that's where most sellers overspend without noticing.
The standard packing method builds a small parcel around every order: sleeve the cards, load the key ones into toploaders, close the bundle in a team bag, cut two pieces of corrugated cardboard slightly larger than the cards, tab the sandwich together with painter's tape, and drop the whole thing in a bubble mailer. Every item has a job — surface protection, bend protection, containment, cushioning. The problem isn't that any of it is wrong. The problem is what the finished parcel costs to send:
| Line item | Per order |
|---|---|
| Penny sleeve | ~$0.01 |
| Toploader, team bag, tape, cardboard, bubble mailer | ~$0.50 together |
| Package postage (USPS Ground Advantage) | $5.00+ commercial label / $7.90 retail |
| All-in per order | $5.50+ |
Materials and postage figures from our PWE vs bubble mailer cost breakdown; typical commercial Ground Advantage pricing.
Look at where the money is. The supplies everyone debates — which toploader, which team bag — are noise next to the postage line. Building a rigid parcel forces package rate, and package rate is the whole bill. On a $12 playset order, that $5.50+ is the margin.
A pocketed trading card envelope — a #10 envelope in heavier, water-resistant stock with a bonded 3-pocket strip built inside — exists to delete most of that list for the 6–50 raw card range:
The replacement math: a $0.30–$0.35 envelope plus $0.82–$1.69 letter postage is about $1.12–$2.04 all-in for up to 50 raw cards, against $5.50+ for the traditional stack. That's $3.50 or more back on every letter-eligible order, before you count the packing time you're not spending cutting cardboard. The trade-off is the same one every letter shipment makes — no tracking number — which is why most sellers set a value threshold and ship tracked above it. The full decision math is in the cost comparison guide, and the packing method itself is in our seller's guide to shipping cards.
Sellers who move real volume stop buying supplies at retail — a handful of toploaders here, a 10-pack of bubble mailers there — and start buying by the hundred. Specialty card mailers from hobby suppliers run $14–$22 and up per pack, and free shipping often only kicks in at multi-pack minimums. Pocketed letter envelopes price the same way any bulk supply does — the per-unit cost drops with quantity:
| Pack | Price | Per envelope |
|---|---|---|
| 5-pack sample | $1.00 flat (limit 1) | trial |
| 100 envelopes | $34.99 | $0.35 |
| 500 envelopes | $164.99 | $0.33 |
| 1,200 case | $359.99 | $0.30 |
All packs ship free in the US. Prices at tcgenvelopes.com/#pricing.
When do you graduate to bulk? The honest answer is order one. At $0.35 per envelope, the supply cost is recovered several times over on the first order it moves out of a bubble mailer — there's no volume threshold where the math starts working, it works immediately and compounds. The 100-pack covers a month or two for most part-time sellers; a 500-pack is the point where restocking stops being a recurring errand.
The last three supplies are the unglamorous ones, and two of them are one-time purchases.
A kitchen scale. Letter postage steps by weight, so guessing is expensive in both directions — overpay and you're donating postage, underpay and the letter comes back or arrives postage-due. Any scale that reads grams or tenths of an ounce works. Weigh the finished envelope, cards in:
| Letter weight | Postage | Raw TCG cards (approx.) |
|---|---|---|
| 1 oz | $0.82 | up to ~10 |
| 2 oz | $1.11 | up to ~25 |
| 3 oz | $1.40 | up to ~40 |
| 3.5 oz (max) | $1.69 | up to ~50 |
USPS First-Class letter rates effective July 12, 2026. Counts are for raw TCG-stock cards in our envelope; penny-sleeved cards run about 25% fewer per tier. Full chart and calculator in the capacity guide.
Stamps. One Forever stamp ($0.82) covers 1 oz; Additional-Ounce stamps ($0.29 each) cover the rest. One Forever plus three Additional-Ounce stamps totals $1.69 — the 3.5 oz maximum — so that combination covers any letter you can legally mail. The classic mistake is slapping on two Forever stamps for a heavy letter: $1.64 is 5¢ short of the max rate, and 5¢ short is how mail comes back.
Printing. A supply list most guides skip: address labels. You don't need them if the envelope stock is printable — our envelopes are 100% printable, so the return address, delivery address, and even postage print straight onto the envelope from a regular desktop printer. No label sheets, no taping a label over a padded surface, and the piece stays smooth and uniform for the sorting machines.
For 1–5 raw cards: a penny sleeve, a toploader, and a plain white envelope or eBay Standard Envelope. For 6–50 raw cards: a pocketed letter envelope, stamps, and a scale — penny sleeves optional. For a high-value single: a bubble mailer or box with tracking. For graded slabs: a rigid box, padding, and a tracked parcel.
No. Inside a letter, a toploader works against you: rigid inserts make the piece non-machinable, which adds a roughly 46-cent surcharge or gets it reclassified as a package at $5.00 or more in postage. Toploaders belong in tracked packages. For letter mail, use an envelope that holds cards flat and stays flexible — built-in pockets do that job without any rigid insert.
As a letter: $0.82–$1.69 postage plus $0.30–$0.35 for a pocketed envelope, so about $1.12–$2.04 all-in for up to 50 raw cards. As a package: $5.50 or more all-in for a bubble mailer with tracking, even at commercial label rates. Graded slabs and high-value orders ship as tracked packages; most everything else is cheaper as a letter.
Yes — it's the cheapest insurance in the whole kit. Letter rates step at 1, 2, 3, and 3.5 ounces ($0.82, $1.11, $1.40, $1.69), and guessing one step low gets mail returned or delivered postage-due. Any kitchen scale that reads in grams or tenths of an ounce works fine.
Patent-pending #10 envelopes with three built-in pockets — up to 50 raw cards per First-Class letter, machinable by design, nothing to fold or tape. Try the 5-pack sample for $1, or stock up from $0.30/envelope in bulk.
See packs & pricing →