Choosing the Best Boxes For Shipping

The Best Boxes For Shipping

Getting ready to send a package through the mail? Great, do you know what type of shipping box you need? There are many shapes, styles, and sizes of shipping boxes out there. Needless to say, it matters which box you choose. Not only will the perfect box keep your items safe, but choosing the right box can also save you money on shipping costs and add protection to the items packed inside.

So, ready to find your dream box? Use this guide to learn more about choosing the best boxes for shipping.

Shipping Box Sizes: Which is Right For You?

The most common question first-time shippers have is “what size shipping box do I need?” The answer of course depends on what you intend to ship. The rule of thumb is to use a box that’s large enough to comfortably hold your item(s) with at least 2-3 inches of space on the sides for packing materials.

Also consider the shape of your item(s). For example, if you’re shipping framed art, you should find a box to closely match the flat, rectangular shape so there’s as little wasted space as possible. This keeps your shipping costs down and keeps your items safer by preventing movement/shifting.

Using the Right Box For Shipping

The go-to of course is what many call a “cardboard box.” But if you ship anything in an actual cardboard box, you might be in for an unpleasant surprise. That’s because actual cardboard is thin and weak, and more often used for product packaging such as cereal boxes. What you want is corrugated fiberboard (aka corrugated cardboard), which is the standard when it comes to packaging items for shipping, moving, or any kind of transporting.

What is a Corrugated Box?

If you close your eyes and picture a cardboard box, you’re probably picturing a corrugated box. This type of box has three layers a middle ‘flute’ layer – usually a in a zig-zag or ridged shape – and two outer layers, or ‘liners’, that hold the flute in place. This triple-layer design supplies a sturdier and stronger container for shipping than standard cardboard, which only has a thin, single layer.

Single or Double Corrugated Cardboard?

Single corrugated, or single walled boxes, have only one layer of fluting, while double walled boxes have two layers. Single layer is more common, while double is more specialized. We recommend using double walled corrugated boxes for shipping in just about all cases. The two layers of fluting gives you twice the impact and puncture protection, so you can rest assured your items arrive at their destination safely.

Edge Crush Test: Why it Matters

Another aspect to consider is the edge crush test (ECT) rating. We won’t bore you with the science. Just know that ECT rating refers to box strength, particularly against crushing. The higher the ECT rating, the less likely it is the box gets crushed. Naturally, double corrugated boxes have a higher ECT rating than single corrugated boxes. For example, a standard U-Haul moving box has an ECT rating of 32, while a double walled moving box carries an ECT rating of 48! In other words, a double walled box can withstand up to a 48-pounds per square inch vertical compression.

U-Haul Doubled Walled Shipping Boxes

Although U-Haul boxes are best known for moving and storage, many of our boxes are ideal for shipping as well. That’s because many of our specialty boxes are double walled and already uniquely shaped to fit common household items. Below are some of the types of shipping boxes we offer.

Box Name Dimensions Image
Dish Barrel Box 18” x 18” x 28”   
Book Box 12" x 12” x 12”
Medium Electronics Box 24” x 24” x 20”
Large Electronics Box 24-1/2” x 24-1/2" x 27-1/2"
Small Heavy-Duty Box 16-3/8” x 12-5/8” x 12-5/8”
Medium Heavy-Duty Box 18-1/8” x 18” x 16”
Wardrobe Boxes Various Sizes

Can I Use Moving Boxes For Shipping?

Yes, moving boxes/single walled boxes can be used for shipping in most cases. In fact, all standard U-Haul moving boxes meet UPS, USPS, FedEx shipping requirements. However, we recommend using double walled boxes rather than single ones if you have the choice. As we’ve outlined, double walled boxes give you better protection from punctures, crushing, and impact than single walled boxes.

If you are using a single walled box, be sure to take extra care packing your belongings by using recommended packaging supplies, like loose fill, bubble packaing, packing tape, and more, and best practice packing methods. As a standard, we recommend at least 4-5 inches of protective material when using a single walled box for shipping. View our complete guides for packing a box for shipping and choosing the best protective packing material to ensure you’re packing your boxes like pro.

What is the Best Tape For Shipping?

Another must-know: duct tape, box tape, electrical tape, etc. These tapes are NOT suitable for shipping. Instead, be sure to use clear, plastic shipping tape. This type has a strong, hot-melt adhesive that’s designed to keep cardboard boxes sealed tight. Other types of tape are likely to peel off your box. Want to learn more about tape? We have a guide for that, too. We also recommend you tape your box the correct way by using the ‘h’ tape method. Learn more about taping a box the right way.

Where to Get Shipping Boxes

You can find boxes for shipping nearly anywhere you can find packaging supplies. That includes over 2,200 U-Haul center locations. We carry a variety of low-cost double walled, specialty boxes designed for reliable moving and storage use that are also perfect for shipping! Order online and choose from same day delivery or FREE pickup in store.

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