What Are Sizes Of Usps Boxes Flat Rate?

The rates in this web log mail are the 2021 USPS aircraft rates. For the current 2022 USPS rates, visit our USPS 2022 Shipping Rate Changes: Flat Rate, Priority, First Class, west/Tables blog.

Flat rate aircraft is a highly underutilized shipping method because not all merchants know what options are available. We see the question all the time, "What are USPS Flat Rate boxes?" We see these questions all the time, "What are USPS Flat Charge per unit boxes?" and "What is Flat Charge per unit Shipping?". This article is intended to respond those questions. From the box sizes available to how the varying flat-rate shipping options can exist used in conjunction to save money on aircraft, we'll suspension down the concept of USPS flat rate boxes for y'all.

What is USPS Priority Mail® Flat Charge per unit?

USPS Priority Mail Flat Charge per unit allows you to pay a single rate regardless of package weight and altitude traveled, upward to 70 pounds. So, whether your twenty-pound bundle is shipping beyond town or beyond the land, the rate is the aforementioned.

This service type is offered for both standard Priority Mail aircraft every bit well every bit Priority Mail Express, and both include standard tracking, upward to $l in insurance, and typically deliver in 1-3 days (including Sabbatum at no additional charge). You can schedule pickups so you don't have to drive to the local mail service function.

There are numerous package sizes available, which nosotros will cover soon. 1 variation on USPS Flat Charge per unit boxes is the online-only Regional Rate option, which does accept distance traveled into account and maxes out at 15 or 20 pounds based on which USPS box size you lot use. We volition besides cover that later in this article.

One of the greatest conveniences of the flat-charge per unit packet type is that you lot can social club the shipping supplies from USPS for free, and they'll evangelize your lodge to your home or office free of charge. When you apply ShippingEasy, you also become discounted rates on USPS shipping rates. You tin can see the discounts on standard Priority Mail Flat Rates below.

Priority Mail Flat Rate		2021 Retail	Savings
Apartment Charge per unit	$ 7.40	$ 7.95	vii.43%
Legal Flat Charge per unit Envelope	$ vii.lxx	$ eight.25	7.xiv%
Padded Apartment Rate Envelope	$ 8.00	$ 8.55	vi.88%
Pocket-sized Flat Rate Box	$ 7.xc	$ 8.45	6.96%
Medium Flat Charge per unit Box	$ xiii.75	$ fifteen.l	12.73%
Large Flat Rate Box	$ 19.thirty	$ 21.xc	13.47%
APO/FPO/DPO Large Apartment Charge per unit Box	$ 17.80	$ 20.40	xiv.61%
*must use boxes

Now let's cover the various types of packaging you can choose.

Become the best rates around, even on Priority Mail service Flat Rate options. Start your complimentary trial of ShippingEasy now!

What are USPS Priority Mail Flat Rate Boxes?

Perhaps the just downside is that you have to use USPS-branded boxes to take advantage of this shipping method. Yous cannot use USPS Apartment Charge per unit aircraft in a plain brown box or your own branded packaging. As long as that is not crucial to your business's branding strategy, using a costless USPS box is worth keeping in mind. The contents must also fit comfortably within the USPS Priority Mail boxes without any jutting.

USPS flat rate boxes

Equally the weight of your packet or altitude traveled increases, the do good of using the various USPS Flat Charge per unit boxes also increases. Let's dive into what USPS Apartment Rate packaging is available to apply and how each of them can benefit your concern.

USPS Priority Postal service Apartment Rate Envelopes

There are iii types of envelopes available in USPS Flat Rate shipping. Some offer a flake more than protection than others.

USPS Flat Charge per unit Envelope Sizes

Priority Mail Flat Rate Envelope: 12 ½" (L) x 9 ½" (W)
Priority Mail Flat Rate Legal Envelope: xv" (L) 10 9 ½" (Due west)
Priority Post Flat Rate Padded Envelope 9 ½" (L) x 12 ½" (West)

All of the above are available with the Priority Mail service Flat Charge per unit Limited option besides. These envelopes are perfect for documents, tickets, fine art, jewelry, and other non-bulky items. Bated from a few instances of very nearby Zones, these envelopes will likely save you lot over weight-based Priority Mail shipping options.

USPS Priority Mail Flat Rate Pocket-sized Box

For smaller items, particularly pocket-size dense/heavy items, that won't fit in an envelope, USPS Priority Mail Flat Rate Small Box is a great option. Beneath are the dimensions for a Apartment Rate Small Box.

USPS Flat Rate Box Sizes – Small

Exterior: viii xi/16″ x v seven/16″ x ane 3/iv″
Within: eight 5/viii″ x 5 3/8″ 10 ane 5/viii″

USPS Priority Mail Flat Rate Box

USPS describes the box size every bit nearly the same equally 3 stacked DVD cases, for those of united states of america who remember what DVDs are. The boxes feature self-agglutinative flaps, which must be able to close fully based on the folds. This indicates that your contents can't bulge the flaps and must fit fully within the box. That will be the rule for all of the boxes nosotros volition discuss hither.

This box type is dandy for bulkier jewelry, vape supplies, modest electronics, and more. For instance, our customer Furls Crochet uses Flat Rate Small-scale Boxes to ship their custom crochet and knitting needles.

USPS Priority Mail service Flat Charge per unit Medium Box

I major departure from the Minor Boxes to the USPS Flat Rate Medium Boxes is that there are 2 versions. Medium Boxes come in a side-loading version, which is a bit more narrow, and a top-loading version, which offers a fleck more inside space. These 2 versions can be helpful in better accommodating varying-sized products.

USPS Flat Charge per unit Box Sizes – Medium

USPS Flat Rate Medium Box-ane Specs (top-loading):

Outside: 11 one/4″ x eight three/4″ x 6″
Inside: 11″ 10 8 1/2″ x 5 1/2″

USPS Flat Rate Medium Box-2 Specs (side-loading):

Outside: 14″ x 12″ x 3 i/ii″
Inside: 13 5/8″ x 11 7/8″ x 3 3/8″

You can encounter the differences between the two beneath.

USPS Priority Mail Flat Rate Medium Boxes

As y'all can come across, the types of products that would easily fit in these 2 boxes varies wildly, just they cost the aforementioned amount to transport. Box 1 could be used to send shoes. Box ii is what we use when nosotros ship dozens of printed versions of our E-commerce Seller's Guide to Shipping Rate Changes to our partners, for example.

Also, once you reach this box size, it'due south more than crucial to compare the cost versus weight-based shipping. There are many instances where the latter would even so be cheaper than flat-rate shipping depending on weight and destination.

USPS Priority Mail Flat Rate Large Box

The USPS Apartment Charge per unit Big Box really offers value one time you're shipping larger, heavier packages. You'll find this method cheaper than weight-based options for packages weighing more than than 25 pounds to virtually Zones. Packages traveling farther across the country will likely exist cheaper using USPS Flat Charge per unit Large Boxes depending on the weight.

For scale, these boxes could be used to ship larger electronics like computers and laptops.

USPS Flat Rate Box Sizes – Large

Exterior: 12 1/4″ x 12 ane/4″ x 6″
Inside: 12″ x 12″ x five 1/2″

USPS Priority Mail Large Flat Rate Box

A benefit of using a applied science similar ShippingEasy is that you can fix rules for assigning shipping selections. If you have larger items that travel varying distances, you can prepare rules to select either USPS Flat Charge per unit Big Box or USPS Priority Post to automate making the better decision based on weight and distance traveled!

USPS Priority Mail APO/FPO/DPO Large Apartment Charge per unit Box

This bundle type is specifically used for sending items to troops and armed forces personnel stationed overseas. Information technology has the same dimensions as the USPS Flat Rate Big Box but includes a message of support for military troops and offers a discounted postage charge per unit for the aircraft service.

USPS Flat Charge per unit Box Sizes – APO/FPO/DPO

Outside: 12 ane/four″ x 12 ane/4″ x six″
Inside: 12″ 10 12″ x 5 i/2″

USPS Priority Mail APO/FPO Large Flat Rate Box

The size of the package supports the power to fill up it with approved items with the same weight limit of 70 pounds. Aircraft overseas can exist a chip pricey, so this flat-rate shipping pick makes information technology much easier to send items to loved ones.

What is USPS Regional Rate shipping?

USPS Regional Rate is a shipping method that provides a flat rate up to fifteen or twenty pounds depending on which of the 2 box options you lot utilize. The difference between this shipping method and USPS Priority Post Apartment Charge per unit is that it still takes altitude traveled into business relationship.

If you compare Regional Rate to both standard Priority Mail weight-based methods and other Priority Mail service Apartment Rate servie, there are times when it will win out and when it will not. The savings tin can be substantial when it does win out, and so it'due south worth making the comparisons.

For example, if you compare Regional Charge per unit Box A versus Medium & Large Flat Rate Boxes, Box A wins out for almost every Zone (upwardly to 15 pounds, as that is the limit for Regional Rate Box A).

When comparing Regional Charge per unit Box B versus Medium & Large Flat Charge per unit Boxes up to twenty pounds, Regional Rate Box B wins from Zones 1-five, just half dozen-vii Medium Flat Rate wins, and for Zones eight-ix Large Flat Rate wins.

Much like USPS Priority Mail Medium Flat Charge per unit Boxes, there are two different versions of the Regional Rate Shipping Boxes for both A and B sizes.

USPS Priority Mail Regional Rate Box A1 and A2

USPS Priority Mail Regional Rate Box A

USPS Priority Mail Regional Rate A1 specs:

Within: 10" (Fifty) x 7" (W) x 4 ¾" (H)

USPS Priority Post Regional Rate A2 specs:

Inside: 12 15/xvi" (Fifty) x 2 ⅜" (W) 10 12 13/16" (H)

USPS Priority Mail service Regional Rate Box B1 and B2

USPS Priority Mail Regional Rate Box B

USPS Priority Mail Regional Rate B1 specs:

Exterior: 12 ¼" (L) x 10 ½" (W) x five ½" (H)
Inside: 12 ⅛" (L) 10 10 ⅜" (W) x five ¼" (H)

USPS Priority Post Regional Charge per unit B2 specs:

Outside: 14 ½" (50) x 3" (Due west) ten 16 ¼" (H)
Inside: xiv ⅜" (Fifty) x 2 ⅞" (West) x 15 ⅞" (H)

When Should Yous Utilize Flat Rate Shipping?

Every bit nosotros've mentioned sporadically throughout, there's no one-and-washed choice when it comes to shipping cost options. At that place are times when 1 method will be cheaper than another—sometimes substantially so. That's why you demand to make use of a our 30-day gratis ShippingEasy trial that hands allows yous to compare rates by carrier and service in i screen.

Will I Get A Aircraft Label with a USPS Tracking Number?

Since these flat rate shipping options are USPS Priority Mail services, they come with all the benefits. When you impress a flat-charge per unit aircraft characterization, it comes with the expected USPS tracking that USPS Priority Mail service and Priority Post Limited include. When you use ShippingEasy, the tracking number can be automatically sent to your client, which makes package tracking piece of cake and efficient. We fifty-fifty offer Branded Tracking, which lets you keep your customers in a branded experience (emails, SMS updates, and a branded landing page) as they rails a package, rather than sending them to a carrier's website to get package updates. This is not just for USPS tracking, only UPS, FedEx, and DHL, too.

Practice Other Carriers Offer Flat Charge per unit Aircraft?

They practice, and we just and then happened to write the only extensive guide effectually. Click beneath to download a gratuitous re-create of The E-commerce Seller's Guide to Flat-Rate Shipping, which features all parcel services offered past USPS, UPS, and FedEx, breaks down the benefits of using which service in what instances, and takes a deeper dive into flat-charge per unit aircraft than nosotros've done in this article. Our updated guide features 2021 aircraft rates and even has tables helping yous understand the book differences betwixt packaging available for USPS, FedEx, and UPS flat-charge per unit shipping.

Get the Guide

The following 2 tabs change content below.

Bio
Latest Posts

I'1000 a digital content and social media nerd with a passion for telling stories, helping connect people, and finding joy in the details.