Have one dimension that is greater than 6-1/8 inches high OR 11-½ inches long OR ¼ inch thick.

The words large envelopes and flats are used interchangeably. The Postal Service uses the word 'flats' to refer to large envelopes, newsletters, and magazines. USPS Marketing Mail Eligibility Decision Tree.Designing Letter and Reply Mail (PUB 25).

If your local Post Office cannot fulfill your order within 1-2 business days, your order will be shipped by our distribution center via USPS Ground Advantage™ service within 2-5 business days – again, at no cost to the customer.Įxpedited packaging supplies can be shipped via Priority Mail® service within 1-3 business days for a fee. Your local Post Office™ facility fulfills orders of Flat Rate Expedited Shipping Supplies in quantities of 1-5.

This will allow your carrier to leave your order if you are not available. For your convenience, all orders will include a “Carrier – Leave if No Response” endorsement. territories.Įxpedited packaging supplies are shipped via USPS Ground Advantage™ service within 2-5 business days at no cost to the customer. The Postal Store® cannot accept orders for shipment outside the United States, but we do ship to APO/FPO/DPO addresses and U.S. If your order contains multiple items, they may be shipped separately.

Orders from the Postal Store® website may be shipped from different distribution centers. To view your order status and tracking information, sign in to your ® account, go to 'Activity History', and select your order number. Please allow one business day from order receipt for in-stock items to be shipped via USPS Ground Advantage™ service or via Priority Mail® service for a fee. Through the Postal Store® website, the Postal Service ships all in-stock orders with USPS Tracking® service.

Usps flat rate envelope sizes