Find the Cheapest Trading Card Mailers & Shipping Boxes
Compare real shipping-supply listings from major retailers for trading cards. Every result is scored by landed cost per box — pack price plus shipping, DIM-weight penalties included.
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Pre-filled for the most common trading cards shipment (7×5×3, 0.5 lb). Adjust to match your item.
Trading Cards dimensions reference
Measured dimensions for common trading cards items — use these to find the right box or mailer size.
| Item | L | W | H | Notes |
|---|---|---|---|---|
| Toploader (standard 3x4) | 4" | 3" | 0.1" | |
| PSA/BGS graded slab | 5.25" | 3.5" | 0.5" | |
| One-touch magnetic holder | 5.25" | 3.75" | 0.75" | |
| Stack of 20 toploaded cards | 4" | 3" | 2.5" |
Recommended box and mailer sizes
How to pack trading cards for shipping
Always sleeve cards before toploading. Sandwich the toploader between two pieces of cardboard cut slightly larger than the toploader, secured with painter's tape (not packing tape — it damages cards if it contacts the sleeve).
For graded slabs, wrap in small bubble wrap and place inside a 7x5x3 box with crumpled paper fill. Never ship slabs in a bubble mailer — they crack.
Use "Do Not Bend" and "Fragile" stamps on rigid and bubble mailers. USPS machines can crush soft mailers.
For PWE shipments, use non-machinable stamps ($0.30 extra) to keep the envelope out of sorting machines that bend.