How to Choose Shipping Boxes for Your Business
The shipping boxes you choose do more than just move products; they play a key role in reducing costs, improving packing efficiency, and supporting your sustainability goals. In this guide, you’ll learn how to choose shipping boxes that fit your products, offer the right box strength, and meet carrier requirements. We’ll also cover popular types of corrugated boxes and packaging solutions to help you find secure, sustainable packaging that works for your business. The better your packaging matches your product and shipping process, the more you’ll save on space, materials, and time.
What Are the Dimensions of the Items You’re Shipping?
A snug fit is key. Oversized boxes often require extra filler, which drives up costs and creates unnecessary waste. Measure the height, width, and length of your product, and choose a box that closely matches.
How to Choose the Right Box by Strength
Shipping fragile or heavy items? Box strength matters. Zoro offers single, double, and triple wall corrugated boxes to match your needs. Use the ECT rating for stacking strength and the Mullen rating for burst resistance—both help you choose the right box for safe delivery.
| Single Wall | Double Wall | Triple Wall |
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| Single wall boxes offer a dependable, lightweight solution for everyday packing and shipping. They are strong enough for routine use and are easy to store. Often rated at 32 ECT or 200# Mullen. | Double wall boxes deliver extra strength for heavier loads and tougher shipping demands. With added durability and crush resistance, they help protect what matters most. Often rated at 48–61 ECT or 275–350# Mullen. |
Triple wall boxes offer heavy-duty protection for your toughest packing jobs. Built to handle bulky, high-weight items, they provide maximum strength and durability. Often rated at 90 ECT or 600# Mullen. |
Box Strength Guidelines by Weight
Use this chart to help select the recommended box strength for maximum box weight, based on UPS and Fibre Box Handbook guidelines.
| UPS Guidelines | Fibre Box Handbook | Box Type |
| 30 lb. | 65 lb. | 32 ECT Single Wall |
| 40 lb. | 65 lb. | 200# Single Wall |
| 50 lb. | 95 lb. | 44 ECT Single Wall |
| 60 lb. | 100 lb. | 48 ECT Double Wall |
| 80 lb. | 120 lb. | 51 ECT Double Wall |
| 120 lb. | 160 lb. | 71 ECT Double Wall |
| - | 280 lb. | 90 ECT Triple Wall |
Explore Your Shipping Box Options
Zoro offers a variety of shipping box options to suit different business needs, including durable everyday boxes, space-saving designs, and solutions for specialized or regulated shipments. The chart below breaks down key types to help you compare and choose what works best for your operations.
| Zoro Select Boxes | Multi-Depth Boxes | Moving Boxes |
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| Get more done with quality boxes, built for value, reliability, and everyday use. With fast 1-day shipping on eligible orders, it’s easy to keep your business moving without missing a beat. | Multi-depth boxes make shipping easier. With built-in score lines, you can adjust the height to fit each order, with no more wasted space or unnecessary filler. | Strong, portable moving boxes help you pack, organize, and relocate with ease. Built to handle heavy loads and daily wear, they’re easy to carry and easy to stack. |
| Hazmat Boxes | Specialty Boxes | Shop All Boxes |
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| Certified hazmat boxes help you ship and store hazardous materials safely. Built for strength and tested to meet regulatory standards, they’re clearly labeled to protect your people, your products, and your peace of mind. | Specialty boxes offer custom-fit solutions for items that don’t work in standard packaging. Designed for unique shapes and sizes, they help protect your products in transit and simplify packing. | From moving and storage to shipping and specialty needs, Zoro carries a wide range of boxes to keep your work moving. Explore all our box solutions to help you stay organized, save time, and get the job done right. |
Ready to stock up? Explore a full range of reliable, durable, and purpose-built shipping boxes at Zoro.com, and find the right solutions to keep your business moving.
Product Compliance and Suitability
The statements contained in this guide are intended for general informational purposes only. Such statements do not constitute a product recommendation or representation as to the appropriateness, accuracy, completeness, correctness, or currentness of the information provided. Information provided in this guide does not replace the use by you of any manufacturer instructions, technical product manual, or other professional resource or adviser available to you. Always read, understand, and follow all manufacturer instructions. Portions of this article were generated in part by ChatGPT, and edited by a member of the Zoro team.
