Postal Indicia Space
Ensure a 1.1/4" x 1.1/4" white space in the upper right-hand corner for postal indicia.
Address Printing Area
Reserve a 2" high by 4" wide white space for the recipient's address and barcode.
Rounded Corners
Rounded corner cards with a radius above .125” are not suitable for bulk mailing.
Card Thickness
Use materials that are at least 0.007 inches thick (like 65# Cover) but no more than 0.25 inches.
Weight Limit
Each piece should weigh no more than 3.5 ounces.
Size Range
Your mail piece should be between 3.5” x 5” and 6.125” x 11.5”. Pieces smaller than 3.5" x 5.6" do not qualify for automation discounts.
Address Requirements
For Marketing Mail, include at least 200 valid addresses; for First Class Presort Mail, at least 500.
Larger Mailings
Pieces exceeding standard mail dimensions can be sent as "Flats" with a maximum size of 12” x 15”, a thickness of up to .75”, and a weight of up to 16 ounces.
Exceeding Flat Sizes
Items that exceed the size limitations of "Flats" can be mailed as “Commercial Parcels”.
