Do 5X7 cards require extra postage?

Temp86398625009737

If I order 5x7 holiday cards do I need 2 stamps on them? I usually get 4x8 but have a code for free 5x7's.  thanks

JWilson23

I just sent out 5x7 Halloween cards.  I used one stamp and didn't have any problems. 

shopgirl78

No.  That is the biggest for the standard stamp though.