Sofia Ramirez Design & Templates Editor at 4OVER4.COM
Sofia is our design and templates voice, built from the knowledge of our production team, with over 20 years in printing.
Question
What size greeting cards require extra postage?
Answer
Postage surcharges come down to shape, size, and thickness, not just weight. A few common greeting card formats trigger extra USPS charges, so it pays to check before you commit to a design.
- Square cards always require the USPS non-machinable surcharge, no matter how small.
- Envelopes larger than 6.125" x 11.5" need extra postage.
- Anything thicker than 0.25" is also surcharged.
Standard rectangular cards like 5" x 7" in matching envelopes mail at regular first-class rates. If you love a square design, just budget for the surcharge up front.
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