EDDM Cards can be any of 6 sizes accepted by the Post Office. Here is the list.
6.5 x 9-inch 6.5 x-12 inch
6 x 11-inch 9 x 12- inch
8.5 x 11- inch 12 x 16-inch
4.25 x 14- inch That is all of them
6.5 x 9 is the most popular with our customers.
Current USPS EDDM postage as of Jan 1st 2023 is 20 cents each. Always subject to change.
The 20 cent rate is the same regardless of the size card mailed. 6.5 x 9 is quite popular, it is
less expensive to print than a large size, however for the same 18.7 rate your potential customer could receive a much large ad. The larger mail piece tends to stand out when mixed with other mail in the mailbox.