Box Sizes of FedEx, UPS, and USPS: Beginners Guide

Box Sizes of FedEx, UPS, and USPS: Beginners Guide

When it comes to shipping, there are three main options: FedEx, UPS, and USPS. Each one has its own benefits and drawbacks, which can make it difficult to decide which is the right choice for your business. In this blog post, we'll break down the different box sizes of each service so that you can make an informed decision. Keep reading to learn more!

How To Choose The Right Standard Shipping Box

It is good to consider your requirements before choosing boxes from different shipping companies. Here are a few examples:

- The product's weight when it is being delivered

- The various boxes' size restrictions

- The service that is being used

- The type of product that is being provided.

Related: Cheapest Overnight Shipping Options for Retailers

UPS Standard Shipping Boxes Sizes And Types

Like many carriers, UPS provides you with a range of pre-cartons and boxes to choose from. These might make planning your shipping and fulfillment expenditures a little easier. When you're fresh to shipping, picking a package from any carrier can also assist you in guarding your merchandise.

Consider experimenting with different UPS boxes to find which one best suits and secures your goods while staying inside your budget. For a vast selection, UPS also provides packaging and freight shipping services. Because these boxes aren't usually conventional, you will need to approach UPS or a third-party logistics supplier for a fair estimate and box details.

Related: USPS Flat Rate Boxes & Pricing: eCommerce Businesses

Many online retailers are unaware that there are a variety of shipping boxes accessible, each of which is designed for a specific function. You need to know what's available, from UPS boxes to packing and shifting boxes, to be ready to choose the proper one:      

UPS Letter

This box is designed for letters. The weight limit is 0.5 lbs, and the size is 12.5" x 9.5". You can easily pack 20-25 envelopes in a single box.

UPS Box 10 Kg

This box is used to do international shipping. The box size is 16" x 13" x 10", and the weight limit is 10kg. So you have to order a minimum of 2 boxes from ups website.

UPS Box 25 Kg

You can use this box for flat international shipping by UPS. The weight limit is 25 kg, and the box size is 19" x 17" x 14". Similarly to 10kg boxes, you have to order at least 2 of them to get this box.

UPS Express Box

The UPS express box comes in three unique sizes. It is exceptionally adaptable and is primarily used to ship on UPS air and other foreign services. The box can weigh up to 30kg, and the size depends on the package you choose.

UPS Document Bag

With a UPS document bag or also known as the express tube. The size of the express tube box is 38" x 6" x 6," and it is mainly used for cards, posters, maps, etc.


This box by UPS is easy to find, and it is indifferent size and has weight restrictions according to the chest.

UPS Pallet

The pallet box by UPS comes in two sizes, large and small. If you choose the large one, you will get a 16.5" x 13.25" x 10.75" size box with a weight limit of 10kg, whereas if you want, the tiny box will be 19.75" x 17.75" x 13.25" and weight limit of 25kg.

Your UPS packing boxes will have a significant impact on how well your clients receive their items. It is essential to pick a package that is the right size. You'll be able to choose the correct UPS box size now as you know all the types and sizes of boxes by UPS.

Related: How to Get Free Shipping Supplies from USPS, UPS, FedEx, and DHL

Cost Of UPS Boxes

You should be aware of one key fact concerning UPS retail box prices: they do not exist! The different shipping items listed are free of charge to UPS customers.

FedEx Shipping Box Types

For your shipment needs, FedEx offers a variety of box sizes. Regular clients and new enterprises can order containers online or collect them in a store for a modest cost. You'll also have access to various complimentary choices if you register a FedEx account.

Small FedEx Box

A single loop of tape, video clips, magazines, compact documents, DVDs, and folders can all be stored in this self-assembly box by FedEx. It measures 27.6cm x 31.1cm x 3.8cm and can hold up to 9kg.

Medium FedEx Box

This FedEx box has a self-sealing lid and is ideal for bulky documents, folders, or books. Its size is 29.2cm x 33cm x 6cm and can hold a maximum weight of 9kg.

Large FedEx Box

One more FedEx delivery box with a self-sealing lid is for machine components, enormous bundles of paper, and pc printouts. The Large Box by FedEx is 31.4cm x 45.4cm x 7.6cm in size and can hold up to 13kg in weight.

FedEx Express Tube

Fabric samples, sketches, pictures, posters, calendars, and blueprints, for example, are best transported rolled rather than crumpled in this FedEx tube. It has a weight restriction of 9kg and dimensions 96.5cm x 15.2cm x 15.2cm.

10 Kg FedEx Box

Sturdy, double-walled FedEx boxes are ideal for low-cost global fixed delivery through FedEx International Priority package for goods weighing 10kg. It's 40.16cm x 32.86cm x 25.8cm in size. However, single-piece deliveries are the only ones who can use this box.

25 Kg FedEx Box

This is yet another box for fixed-rate international delivery using FedEx International Priority Delivery that takes up to 25kg. It is also for the delivery of single pieces. For your eCommerce business, you'll use a variety of box sizes. Know the requirements of your items and how much infill you'll need to cover them effectively. You can get all the boxes mentioned above for free on the FEDEX website.

Related: What is FedEx Priority Overnight?

USPS Flat Rate Boxes For Shipping

Flat Rate cartons or boxes from the United States Postal Service are just that: cartons with flat postage costs, regardless of package weight. Flat Rate Boxes seem to be cost-effective for delivering heavy, compact products. Keep a stock of them throughout your fulfillment operations to enjoy the benefits of USPS flat prices. Using a USPS Standard Rate Box might save you up to 50% on shipping expenses. This is a fantastic method to be ready for the peak shipping season. Here are some types of boxes by USPS:

Padded envelope: This envelope size is 12 1/2" x 9 1/2," and it costs $7.40

Gift cards envelope: The size of the gift cards envelope is 10" x 7". These cost the same as the padded envelopes, $7.40.

Medium box: Medium size boxes are in different sizes such as 11 1/4" x 8 3/4" x 6" or 14" x 12" x 3 1/2"

Large box: You can also find large boxes by USPS with different large sizes.

Small USPS box: 8 11/16" x 5 7/16" x 1 3/4" is the size of these boxes made by USPS. These boxes cost 7.90$.

Related: Compare USPS Priority Mail to Priority Mail Express


Shipping is a difficult process. There are so many different services and mediums to choose from, each with their own benefits and drawbacks. We hope that this blog post has helped you make an informed decision about which service would work best for your business needs. If you're still struggling to decide, Simpl can help! Our team of logistics experts will take care of everything - pick-pack-ship. Get in touch today if you want us to handle all the heavy lifting for you!

Recommended: Overnight Shipping: How Does Next Day Shipping Work

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