A Comprehensive Look At USPS Priority Mail Box Sizes

Priority Mail Box Sizes

For domestic shipments within the USA, USPS Priority Mail provides a fast and reasonable courier service. This mail service handles packages up to 70 pounds includes a tracking system with up to $100.00 of insurance and takes 1-3 business days delivery time. As compared to First Class Mail's 1-5 business day delivery time, this priority mail service is a far better choice.

Priority mail boxes offered by USPS free of cost are used for priority shipments within the USA. USPS offers these shipping boxes in small, medium, and large sizes to serve various shipping needs. 

These boxes are a reliable, and convenient shipping solution. What matters is the priority mail box dimensions. Therefore, it is essential to choose a box with ideal dimensions that perfectly fit to accommodate products and make shipping convenient. 

With this definitive guide, you will learn various sizes and dimensions of USPS priority mail boxes and see how they can help meet your shipping demands. So, no time to waste. Here we go.

What Are Priority Mail Boxes and Sizes

USPS offers these priority mail boxes for free to ship and deliver packages in any State. Usually, USPS priority mail box sizes are different. From small to large their sizes and dimensions differ from each other. When it comes to paying shipping prices, it is based on weight and distance. However, for priority mail flat rate boxes the shipping costs (within the continental US), up to a certain weight limit are flat and fixed. 

What Are Flat Rate Priority Mail Box Sizes Available

Flat Rate Priority Mail Box Size

The dimensions, sizes, and prices of priority mail flat rate boxes do vary. The size of a priority mail small flat rate box is 8-5/8" x 5-3/8" x 1-5/8" which is good for shipping stacked DVD cases, jewelry, and electronic items.

A medium-sized box, they are categorized into two. Their dimensions and sizes are 11" x 8-1/2" x 5-1/2" and 13-5/8" x 11-7/8" x 3-3/8". They are perfect for shipping shoes and garments.

The priority mail large flat rate box size and dimension is 12" x 12" x 5-1/2". They are ideal for computers, gifts, books, and other heavier items. Apart from this, the priority mail large flat rate game board box size is 23-11/16" x 11-3/4" x 3".

Priority Mail Express Box Sizes Catering To Shipping Needs

Priority mail express boxes are available for free at USPS locations and can be ordered online using the USPS website. They are reasonable for expedited shipping services ensuring overnight delivery to most locations in the United States.

The size of a priority mail express box is 12-1/2" x 9-1/2" x 3-1/2". This sized box is suitable for documents, and small packages. Not only this. A slightly smaller sized box is also available as 10" x 7" x 4". A large-sized primary mail express box with the dimensions of 15-5/8" x 12-7/8" x 2-5/8" is available to fulfill your shipping demands for bigger items.

How Much Priority Mail Flat Rate Shipping Cost Is

Now, take a look at the priority mail flat rate box sizes and prices. The boxes are free however regardless of weight and destination USPS has set a shipping price. The shipping price for small small-sized box is $10.40. A medium-sized box shipping costs $18.40. Lastly, the large-sized box shipping price is $24.75. You can make the right choice of shipping box to place your items comfortably.

What If You Use Your Own Packaging Boxes For Delivery From USPS

Boxes For Delivery From USPS

Priority Mail allows you to use your own packaging as long as you don't use the Flat Rate boxes. As a maximum combined length and girth of 108 inches, the package must meet Priority Mail's size restrictions - up to 70 lbs. You will need to pay shipping charges by weight and distance. So measure your package carefully to meet size standards and pay the shipping price by your package weight and distance.

If your package is lightweight and larger than 1 cubic foot, there are additional dimensional (DIM) rates applied. Don’t worry. There is a formula available. You can get the DIM weight in pounds by following this: Multiply Length x Width x Height and then divide it by 166. 

If the DIM weight exceeds the actual package weight, then you need to pay the DIM weight price.Giving inaccurate dimensions and/or not paying the DIM weight rate (when it applies), will result in a dimension-noncompliance fee. 

You will need to pay an extra fee for sending a nonstandard size if your package measures between 22 and 30 inches long. $4.00 is charged for this. For more than 30 inches long $18.00 are added. $30.00 is charged if it is more than 2 cubic feet.

A helpful tip to avoid any kind of confusion and get the accurate dimensions of the box is to use the USPS price calculator tool that can give you a clear domestic packaging postage cost idea.

Bottom Line

After reading this guide, we have also come across various sizes and dimensions of priority mail boxes. To conclude, we can say the right dimensions of a priority mail box are important for placing your products. Without fear of damage, you can ship your products ensuring they will reach their destination in their original condition.

If you need shipping boxes to deliver your products on your own, head over to Custom Product Packaging, serving its customers under a professional customer care team. Affordable rates with a free shipping facility allow you to get your courier delivery shipping packaging boxes in custom sizes and dimensions. Email us at order@customproductpackaging.com to let us know your requirements. We will promptly respond to answer your query. Reach out to us TODAY!

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