Mail and stampage is based upon the weight of the mail. As long as the letter is still light, you shouldn't need more postage.
Some post offices do offer 5x7 envelopes for purchase. You can also find them at office supply stores.
At office max 5x7 envelopes are usually $10 for a 50 count package. They are however frequently out of stock.
Most standard size greeting cards will fit in 5x7 envelopes. As long as the card is less than 5 by 7 inches in size, it will fit comfortably in the envelope.
How much postage is required to send a Christmas card from U.S. to Germany?
5x7 paper is commonly referred to as "5x7 size" or "5x7 inches."
35
As of May 2011 any postcard over 4.25"x6" and less than 6.13 x 11.5" is considered regular First Class and is $0.44
5-(5x7) 5-(35) =-30
No. 5x7 is 35.
35.
5x7 in the front and 5x7 in the back.
5x7 all the way around. Replace with after market 6x8 with 5x7 holes.