Breaking the Myth: Heavier Boxes Aren’t Always Better

Which box is right for you?

Contributed by SupplyLand

When it comes to selecting the right corrugated cardboard box for shipping and packaging, the choice can be confusing. Many businesses often question the differences between 200# Mullen Test boxes and 32 ECT boxes. This is especially true when some large vendors market the heavier 200# boxes.

But here’s the truth: in many cases, this added weight and cost aren’t necessary for most consumer goods

Two commonly used types are 200# Mullen-rated and 32 ECT (Edge Crush Test) boxes. Though they may look alike, each has unique features that impact stacking strength, bursting strength, and cost-effectiveness. Here is a quick guide to help you choose the best corrugated box for your needs.

Quick Comparison Guide: Choosing the Right Box for Your Needs

A common misconception in the industry suggests that heavier, thicker boxes are the best option for all shipments. While 200# boxes are stronger, they can raise your shipping costs. They do not offer much extra protection for lighter items. For many e-commerce and consumer goods, 32 ECT boxes are a cheaper option that keeps items safe.

Understanding the ratings for 32 ECT vs. 200# Mullen Test:

32 ECT (Edge Crush Test): Measures stacking strength—how much weight a box can bear per inch of edge. Lightweight and versatile, 32 ECT boxes are ideal for products where stacking strength and cost efficiency are key. Choose these for lightweight, stackable items like apparel, books, and standard consumer goods. They’re cost-effective and perfect for e-commerce shipping, reducing both material and shipping expenses.

200# Mullen Test: Measures bursting strength—how much pressure the box can withstand before bursting. This makes 200# boxes perfect for heavy-duty items or shipments that require extra protection against rough handling. Choose 200# Mullen Test Boxes for shipping heavier and bulkier items that need extra strength. This is important if your products have sharp edges or unusual shapes.

Understanding the ratings for corrugated boxes can help you choose the right box for your needs. Source: SupplyLand.

Pros and Cons of 32 ECT Boxes

Advantages:

  • Lightweight and Cost-Effective: 32 ECT boxes reduce shipping costs and are easier to handle.
  • Eco-Friendly: They have a lower environmental footprint with less raw material, which is ideal for businesses prioritizing sustainability.
  • Good Stacking Strength: Suitable for lighter items like clothing, books, and smaller electronics.

Disadvantages:

  • Less Protection: 32 ECT boxes are less strong for heavy or high-impact items. This includes heavy machinery and glass monitors for electronics.
  • Limited Size Options: Available in a wide range of sizes, suitable for standard, lightweight consumer goods.

Pros and Cons of 200# Mullen-Rated Boxes

Advantages:

  • Superior Strength: 200# boxes provide excellent protection for heavy or fragile items.
  • Wide Industry Acceptance: Recognized for shipping and handling high-value or fragile items like electronics and glassware.
  • Durable for Long Distances: Ideal for shipping items across distances or international shipping where added protection is a must.

Disadvantages:

  • Higher Shipping Cost: They can increase overall shipping and packaging expenses due to their weight.
  • Less Flexible: Heavier and bulkier, making them more difficult to handle than single-wall, ECT-rated boxes.

UPS Box Strength Guidelines

When picking the right box strength, UPS Packaging guidelines suggest matching the box to the weight and size of the shipment. Here’s a quick breakdown of box strength guidelines:

  1. Use a rigid box with flaps attached.
  2. Avoid re-using boxes.
  3. Use the Box Strength Guidelines chart to determine the proper strength of your shipping container.
  4. Use adequate cushioning material.
  5. Use strong tape designed for shipping.
  6. Never use string or paper over-wrap.
  7. Wrap all items separately.

Which Box is Right for You?

32 ECT high-quality boxes are the ideal choice for businesses focused on cost-effectiveness and lightweight shipping. They reduce shipping cost and are perfect for everyday products. 275# Mullen-rated boxes are a good investment for those needing extra strength and durability. This is especially true for fragile items or long-distance shipping.

About the Contributor

Shop at SupplyLand for corrugated Kraft boxes, tall and long boxes, heavy-duty boxes, and multi-depth boxes and tape. We have over 1,600 sizes in stock. Plus, enjoy perks like low-cost shipping and exclusive gifts on orders over $150. Learn more at https://www.supplyland.com/.

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