Shipping Supplies Boxes · Priority Mail Flat Rate® Small Box · Single, Pack of 10 or 25 · 8-11/16"(L) x 5-7/16"(W) x 1-3/4"(H) $0.00 · Priority Mail Flat Rate® Medium Box · Single, Pack of 10 or 25 · 11-1/4"(L) x 8-3/4"(W) x 6"(H) $0.00 · Priority Mail Flat Rate® Side-Loading Medium Box ·

August 28, 2025 - As the regional rate box name shows, their cost and type depend on the zone (region). These boxes are available in three sizes, USPS large box, USPS small box, and USPS medium box.

Shop our selection of Free Shipping Supplies Shipping Supplies on the USPS.com Postal Store

USPS Label Delivery service: Even if you don't have a printer, you can still ship online using Click-N-Ship—for an extra $1.55 per label, we'll print an outbound label and deliver it to you. (Businesses can also request return labels for their customers.) View Price Files Calculate a Price See Insurance & Extra Services · Pay the same price for mailpieces weighing up to 70 lbs going anywhere in the U.S. Use our Priority Mail Flat Rate Envelopes or Boxes that come in standard sizes so you don't have to worry about measuring them.

October 23, 2025 - With a USPS Flat Rate Box or Envelope, you will be able to ship any item of any weight up to 70lbs to any location for the same price assuming it fits properly, without any bulging, within its designated box or envelope. That being said, let’s dive into the different USPS Priority Mail Box and Envelope options. There are 5 different options for USPS Flat Rate Envelopes. Each envelope is unique in size ...

An order of 1 equals single boxes, a pack of 10 or 25 boxes depending on your selection under Format. Additional Information: - Can be used for Domestic Priority Mail and International Priority Mail (20 lb weight limit applies).

Shop our selection of Free Shipping Supplies Shipping Supplies on the USPS.com Postal Store

January 9, 2024 - To ship with USPS Flat Rate, you need to use USPS Flat Rate boxes. Flat Rate boxes come in three main sizes: small, medium, and large.

Domestic deliveries arrive in 2-3 ... are free, and with Priority Mail Flat Rate®, you don't need to weigh shipments 70 lbs and under....

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This "if it fits, it ships" approach makes flat rate boxes ideal for heavy items traveling long distances. ... To use Priority Mail flat rate service, you must use official USPS flat rate branded boxes and envelopes. Regular Priority Mail boxes won't qualify for flat rate pricing. ... Here are the current USPS flat rate boxes prices and sizes, along with Shippo's discounted commercial rates (accurate as of 2025):

This item ships in singles, and packs of 10 or 25 boxes.

Priority Mail Shipping Supplies Boxes · Priority Mail Flat Rate® Small Box · Single, Pack of 10 or 25 · 8-11/16"(L) x 5-7/16"(W) x 1-3/4"(H) $0.00 · Priority Mail Flat Rate® Medium Box · Single, Pack of 10 or 25 · 11-1/4"(L) x 8-3/4"(W) x 6"(H) $0.00 ·

Your one stop shop for the best in shipping and mailing supplies for your Stamps.com account. Everything from boxes to bubbles mailers, envelopes and certified mail, to postage scales and thermal printers from brands like ProLabel, Dymo, ONYX Products, and Zebra.

Home » Home » Domestic Mail » United States Postal Service - USPS » USPS Priority Mail » USPS Priority Flat Rate Menu

February 5, 2025 - If the package is larger, you can ... for USPS to collect the package, making it a convenient option for busy shippers. Flat rate boxes can be shipped anywhere in the U.S., with a broader address range compared to some other shipping services like UPS and FedEx. This includes short distances and long distances without any additional fees based on distance. Flat Rate shipping works by offering a set price regardless of the size of the box ...

An order of 1 equals 10 or 25 boxes depending on your selection under Format. Each Priority Mail and Priority Mail Express shipment includes USPS Tracking® service.

An order of 1 equals, 10 or 25 boxes depending on your selection under Format. Each Priority Mail and Priority Mail Express shipment includes USPS Tracking® service.

The USPS Flat Rate Medium Boxes ... for shipping larger, heavier packages. There are three main Flat Rate Box sizes: Flat Rate Small Box, Flat Rate Medium Box 1, and Flat Rate Medium Box 2....

The table below shows options for different Priority Mail Boxes and Envelopes, along with dimensions, online postage pricing and ... Order USPS Supplies in Bulk! Call 1-800-610-8734. ... All prices listed are Commercial Base rates (effective January 2014), only available for online postage vendors such as Stamps.com. Download this PDF guide at www.stamps.com/whitepapers · Priority Mail Flat Rate Padded Envelopes are a great option · to lower shipping costs.