The Dimensions of all the Free USPS Boxes

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 12.25 x 2.875″
• Priority Mail Box 1095 – 15.625 x 12.5 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 12.25 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 – 14.125 x 12 x 3.5″
• Priority Mail Large Flat Rate Box – 12.25 x 12.25 x 6″
• Priority Mail APO/FPO Flat Rate Box – 12.25 x 12.25 x 10″
• 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 – 15.625 x 12.5 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!