We have postal experts on staff who have completed United States Postal Service training so we can get you the lowest postal rates around. We sort, tag, bag and palletize your mail cheaper than the post office can and you can pocket your savings.

There are many factors to consider when designing mail. A wealth of information can be found at www.usps.com or email us at info@accuratemailings.com and we will help you design a package that accomplishes your goals.

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Postal Compliance Verification
In order to qualify for barcode discounts, all addresses must be updated within 180 days before mailing using a USPS approved address update tool (e.g., Address Correction Service, National Change of Address, FASTforward , or ancillary service endorsement). If Accurate Mailings has provided you with any of these services, we will maintain a record. If Accurate Mailings did NOT provide this service, please fill out and return this certificate so that we can maintain complete and accurate records.

Dimensions in Inches
Minimum postcard 3.5 x 5.5
Maximum postcard 4.25 x 6.25
Minimum letter 3.5 x 5.0
Maximum letter 6.125 x 11.5 x .25 thick
Minimum flat must exceed one of the letter dimensions
Maximum flat dimensions 12 x 15 x .75 thick

First Class Mail
Bills, business transactions and personal letters must be mailed first class.

Up to 13 ounces (over 13 ounces mails Priority Mail)

Minimum size 5 inches long by 3.5 inches tall
Maximum size 6 inches long to 4.25 inches tall

Maximum size 11.5 inches long by 6.125 inches tall by .25 inches thick*

500 piece minimum to qualify for presort rates

* nonstandard surcharge may apply

Standard Class Mail
Promotional mail and impersonal messages

Up to one pound

There is no special category for postcards using standard class. In most cases it is cheaper and faster to send postcards first class.

Maximum size 11.5 inches long by 6.125 inches tall by .25 inches thick*

200 piece minimum to qualify or presort rates

* nonstandard surcharge may apply

Official USPS Standards
Click on any of the following links to view or download official USPS standards documents in .pdf format (Adobe Acrobat Reader required, click here to download.)

Ancillary Service Endorsements
Designing Flats for Automated Processing
Designing Letters and Cards for Automatic Processing
Postage Rates
Tabs and Wafer Seals