The A6 envelope measures 4 3/4 x 6 1/2, and the A7 measures 5 1/4 x 7 1/4. The measurements of those envelopes are as follows. First-Class Mail ® is an affordable mail service for standard-sized, single-piece envelopes weighing up to 3.5 oz and large envelopes weighing up to 13 oz. The side containing the address and postage must be a matte finish or the item will be subject to a 5 cent handling fee per item. A2 envelopes, A6 envelopes, and A7 envelopes are some of the most popular sizes of square envelopes.

A single Forever stamp will be enough to send off an item in a commercial envelope measuring 11.5 inches (29. When mailing postcards, do not print the postcards with double sided glossy finish. Use a Forever stamp for most standard mail items. If you have questions concerning a particular color of envelope, please contact the Mail Center by email at or call us at (208) 282-3685 during normal business hours. Any envelopes printed in these colors will be subject to a 20 cent handling fee per item. Aspect ratio: Length divided by height: Ratio must be between 1.3 and 2.5 or the letter will be subject to a non-machinable surcharge. However, the colors of RED and ORANGE should be completely avoided, as well as DARKER COLORS, as they interfere with the Post Office’s ability to verify the postage attached to the items. Envelopes that do not meet this standard will be subject to additional handling fees of 5 cents per envelope.Ĭolored envelopes are generally ok when sending out mailings. When printing envelopes to send out from campus, please be sure to leave a blank white space of no less than 1.5” high x 3.5” wide so that there is adequate room to affix postage to the items. Please be aware that this can mean a significant raise in the price of mailing items and try to package your items accordingly. If you have questions on this please contact the Mail Center by email at or call us at (208) 282-3685 during normal business hours.Īny package with a dimension over 12” may be subject to additional handling fees as per USPS standards. Please ensure that your items are properly secured in adequate packaging. However, this is not a guarantee that the items will make it. There is a 6 envelope in booklet style which measures 5 ¾ inches by 8.875 inches. The business 12 envelope size is 4 ¾ inches by 11 inches. This is often confused with the popular announcement/notecard A7 size which is usually 5 ¼ inches by 7 ¼ inches. keys, name tags, lanyards, face masks, etc.), the item is automatically upgraded to a package to try to ensure that the item reaches its destination in one piece. The standard A7 envelope size is 2.9 inches by 4.1 inches. If an item has a significant lump or something that will not survive processing through mail machines (i.e. Padded Envelope, Oversized Envelope, or up to 13 ounces in weight The following standards are used when determining the proper way of mailing out items.

Usps standard envelope sizes