Letter
Dimension Minimum Maximum
Height 3-1/2 inches 6-1/8 inches
Length 5 inches 11-1/2 inches
Thickness 0.007 inch 1/4 inch
Any item smaller than the minimum dimensions is not mailable.
For larger items, see large envelopes or packages.
For envelopes, length is the dimension parallel to the address.
For items over 3.5 ounces, see large envelope or package prices.
Letters that meet one or more of the nonmachinable characteristics below are subject to the nonmachinable surcharge.
It is a square letter
It is too rigid -- does not bend easily
It has clasps, string, buttons, or similar closure devices
It has an address parallel to the shorter dimension of the letter
It contains items such as pens that cause the surface to be uneven
The length divided by height is less than 1.3 or more than 2.5
Square Envelope
The minimum size for a square envelope is 5" x 5".
Square letters are subject to the nonmachinable surcharge.
The 6x7 greeting cards are large. The cards only require a single stamp, so you will not need to add any additional postage.
As of April 2009, the postage to send a square greeting card is the standard first class 1oz letter postage of 42 cents, plus a non-machinable charge of 20 cents.
It depends on where you are posting it from and where to - nationally or internationally.
is extra postage required for mailing a gift card
+98
does it take extra postage for 6x8 christmas card
Postage for greeting or postcard from Australia to UK is A$1.60 as of December 2011.
It's $1.25 for a greeting card.
Buy a card. Write your greeting, Place card in envelope. Buy the correct postage. Insert card in postbox
That will depend on where in the world you are posting it from.
$1.80
How much postage is required to send a Christmas card from U.S. to Germany?
How much postage is required for a 6x8 inch card? It weighs less than 1 ounce.