Postal Mailing Requirements

United States Postal Service (USPS) regulations dictate business and personal mailing specifications that are important to remember when working on a piece to be mailed.

• A piece of mail of an inch or less in thickness must measure at least 3 inches high by 5 inches long.
• 7 pt. is the minimum thickness permitted for any mailed piece.
• 108 combined inches (length and girth) is the maximum size for a mailed piece.
• Most cover weight papers make suitable postcards, mailers and business reply cards.

Postal regulations change. To confirm current postage rates, size requirements and other valuable mailing information, visit the USPS site. Or go to your local post office.