Usps priority mail small flat rate box dimensions

USPS Flat Rate is the secret saver for heavy packages. Ship a gold brick or a feather – the price is the same. With Flat Rate, you’re not paying for shipping by weight or distance like typical services. You only pay a single fixed price.

So what are your options for small USPS Flat Rate boxes? Well, a Flat Rate box lets you send any item weighing less than 70 pounds anywhere. The only restriction is that your item must fit the box.

If you’re like most shippers, you want your box to fit your item perfectly. With this in mind, today we highlight your options for USPS small Flat Rate boxes.

Don’t forget: you can save up to 89% off all Flat Rate shipping with Easyship. To see exactly how much, try our free shipping rate calculator. Just enter your package weight and destination for an instant savings quote.

What is USPS Priority Mail Flat Rate?

USPS Priority Mail Flat Rate is a shipping service that charges a single flat fee for all shipments weighing less than 70 pounds.

Unlike typical shipping services that are priced by weight and delivery distance, Flat Rate charges a single flat fee. USPS Priority Flat Rate shipments arrive in 1-3 days.

Packages sent via Flat Rate must use designated Flat Rate boxes or envelopes. This is because the box itself serves as the postage. Small USPS Flat Rate boxes are available on the USPS website for free.

Here’s a handful of reasons to use Priority Mail Flat Rate instead of other USPS shipping services:

• Economical for heavy items: The cheapest way to send heavy items greater distances is often via Flat Rate. This is because Flat Rate isn’t priced by weight, dimensions, or delivery distance.
• Easy shipping: No need to weigh or measure packages at a Flat Rate. Any item that fits inside a small USPS Flat Rate box and weighs less than 70 pounds is good to go.
• Quick delivery: Small USPS Flat Rate boxes arrive in 1-3 days, though the delivery date isn’t guaranteed.
• Free shipping boxes: You can order USPS small flat rate boxes and flat rate envelopes free of charge from the USPS website or the local post office.
• No surcharges: Flat Rate shipping never pays for surcharges on fuel or rural delivery.

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Need to figure out the dimensions of your USPS box? We’ve got you covered. We’ve published the actual as well as listed outer dimensions of all of the free USPS boxes below, along with links to where you can order them on the USPS website. Heads up: all of these boxes are free to order, and USPS will deliver them right to your front door!

What Do You Mean by “Actual” and “Listed” Dimensions?

The actual dimensions are the measurements that we physically took of each of these boxes. In our experience, we’ve found that the dimensions USPS lists on some of these boxes are slightly different than how they actually measure up. Hence, actual vs. listed dimensions. When you use shipping software to buy postage, you’ll likely need to enter the dimensions of your USPS boxes, if it’s not marked with a specific service such as Flat Rate or Regional Rate. In this case, we suggest entering the actual dimensions of the box, and not the listed dimensions.

The Actual Outer Dimensions of Each Free USPS Box

• Priority Mail Box 1092 – 13.625 x 12.25 x 2.813″
• Priority Mail Box 1095 – 15.5 x 12.5 x 3.125″
• Priority Mail Box 1096L – 9.375 x 6.375 x 2.188″
• Priority Mail Box 1097 – 13.188 x 11.625 x 2.5″
• Priority Mail Box 4 – 7.25 x 7.25 x 6.25″
• Priority Mail Box 7 –
• Priority Mail Shoe Box – 14.5 x 7.625 x 5.188″
• Dual-Use Priority Mail/Priority Mail Express Small Tube 1098S – 25.75 x 5.25 x 5.25″
• Dual-Use Priority Mail/Priority Mail Express Medium Tube 1098 – 38 x 6.25 x 5″
• Priority Mail Small Flat Rate Box – 8.688 x 5.438 x 1.688″
• Priority Mail Medium Flat Rate Box 1 – 11.125 x 8.75 x 5.75″
• Priority Mail Medium Flat Rate Box 2 –
• Priority Mail Large Flat Rate Box –
• Priority Mail APO/FPO Flat Rate Box –
• Priority Mail Regional Rate Box A1 – 10.125 x 7.125 x 5″
• Priority Mail Regional Rate Box A2 – 13 x 11.063 x 2.5″
• Priority Mail Regional Rate Box B1 – 12.25 x 10.5 x 5.25″
• Priority Mail Regional Rate Box B2 – 16.25 x 14.5 x 3″
• Priority Mail Express Box 1 – 11.25 x 5.563 x 8.625″
• Priority Mail Express Box 2 –
• Priority Mail Express Box 1093 – 15.5 x 12.5 x 3″
• Priority Mail DVD Box – 8.75 x 5.563 x 1.438″
• Priority Mail Large Flat Rate Board Game Box –
• Dual-Use Priority Mail/Priority Mail Express Box DEMPBOX1 – 11.125 x 8.625 x 5.625″
• Dual-Use Priority Mail/Priority Mail Express Box DEMPBOX2 – 14 x 12 x 3.5″

The Listed Outer Dimensions of Each Free USPS Box

• Priority Mail Box 1092 – 13.688 x 12 x 2.875″
• Priority Mail Box 1095 – 15 x 12 x 3.125″
• Priority Mail Box 1096L – 9.438 x 6.438 x 2.188″
• Priority Mail Box 1097 – 13.375 x 11.625 x 2.5″
• Priority Mail Box 4 – 7.25 x 7.25 x 6.5″
• Priority Mail Box 7 – 12.25 x 12 x 8.5″
• Priority Mail Shoe Box – 14.875 x 7.375 x 5.25″
• Dual-Use Priority Mail/Priority Mail Express Small Tube 1098S – 25.625 x 6.313 x 6.313″
• Dual-Use Priority Mail/Priority Mail Express Medium Tube 1098 –  38.063 x 6.25 x 4.25″
• Priority Mail Small Flat Rate Box – 8.688 x 5.438 x 1.75″
• Priority Mail Medium Flat Rate Box 1 – 11.25 x 8.75 x 6″
• Priority Mail Medium Flat Rate Box 2 – 15 x 12 x 3″
• Priority Mail Large Flat Rate Box – 12.25 x 12 x 6″
• Priority Mail APO/FPO Flat Rate Box – 12.25 x 12 x 6″
• Priority Mail Regional Rate Box A1 – 10.125 x 7.125 x 5″
• Priority Mail Regional Rate Box A2 – 13.063 x 11.063 x 2.5″
• Priority Mail Regional Rate Box B1 – 12.25 x 10.5 x 5.5″
• Priority Mail Regional Rate Box B2 – 16.25 x 14.5 x 3″
• Priority Mail Express Box 1 – 11.75 x 8.75 x 5.75″
• Priority Mail Express Box 2 – 11.875 x 11.75 x 3.625″
• Priority Mail Express Box 1093 – 15 x 12 x 3.125″
• Priority Mail DVD Box – 8.75 x 5.563 x 0.875″
• Priority Mail Large Flat Rate Board Game Box – 24.063 x 11.875 x 3.25″
• Dual-Use Priority Mail/Priority Mail Express Box DEMPBOX1 – 11.25 x 8.75 x 6″
• Dual-Use Priority Mail/Priority Mail Express Box DEMPBOX2 – 14.125 x 12 x 3.5″

Why Decimals and Not Fractions?

You may have noticed that we listed out all of these dimensions in decimals instead of fractions. We did this because most online shipping software companies don’t recognize fractions when you enter in your box’s dimensions. You’ll most always have to enter your outer dimensions using decimal points no matter which shipping software you use, so we figured listing them out this way would make things easier!

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