Made in USA

A 20x20x12 corrugated box (32 ECT) from a case of 10 is shown with its four top flaps open against a white background.

20x20x12 Corrugated Boxes (32 ECT) - Case of 10

Name: 20x20x12 Corrugated Boxes (32 ECT) - Case of 10
Brand: ePackage Supply Production
SKU: E101452
Price: 26.24 USD
Availability: InStock

1 - 3

$26.24$2.62/Unit

4 - 9

$25.57$2.56/Unit

-2.6%

10 - 14

$24.94$2.49/Unit

-5%

15 - 19

$24.32$2.43/Unit

-7.3%

20 - 24

$23.70$2.37/Unit

-9.7%

25+

$23.11$2.31/Unit

-11.9%

13 cases per pallet

Quantity (cases):

1 case

We offer reliable shipping across the continental U.S., Hawaii, Alaska, military addresses, and U.S. territories including Puerto Rico, Guam, and the U.S. Virgin Islands.

Orders are typically processed within 1–2 business days from our warehouse in Indiana. Delivery times vary by destination but generally fall within 1–3 business days for most domestic locations.

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These 20" x 20" x 12" corrugated boxes deliver reliable single-wall 32 ECT strength in a convenient 10-count case format. The large, flat profile design provides substantial surface area with moderate height, perfect for items that require a wider base without excessive vertical space, optimizing both protection and shipping costs.

Supplied flat for compact storage, these boxes assemble in seconds and recycle easily after use. From e-commerce fulfillment lines to warehouse pick-pack stations, they are the go-to choice for shipping large flat-screen TVs, artwork, mirrors, tabletops, and wide-format merchandise items.

Key Advantages

32 ECT single-wall board certified for up to 65 lb gross weight with reliable stacking strength
Large flat profile (20" × 20" × 12") ideal for wide items needing substantial base support
Single-wall C-flute corrugated kraft board construction for lightweight yet durable packaging
Natural kraft exterior accepts labels, markers, and ink-jet printing for easy identification
100% recyclable and biodegradable corrugated fiberboard that's curbside-collection ready
Convenient 10-box case keeps supply levels steady for small and mid-size operations
Ships and stores flat to save valuable warehouse space until needed

Ideal Applications

Electronics & Display Shipping

Perfect for shipping computer monitors, flat-screen TVs, gaming systems, and other electronics requiring wide, stable packaging with protective cushioning space.

Home Decor & Furniture

Ideal dimensions for safely shipping mirrors, framed artwork, glass tabletops, shelving, and flat-pack furniture components.

Commercial Display Storage

Large square footprint accommodates signage, display boards, promotional materials, and trade show exhibits requiring flat storage.

Large Gift Sets

Create impressive presentations for corporate gift baskets, luxury product collections, or large subscription boxes requiring generous horizontal space.

100% Recyclable

Constructed from corrugated kraft paperboard that can be placed in curb-side paper recycling streams throughout North America.

Custom Printing Available

Transform these boxes into branded packaging with custom logos, colors, and messaging to enhance your customer's unboxing experience.

Product Details

These corrugated cartons are engineered from single-wall, C-flute corrugated kraft board with a certified 32 ECT (Edge-Crush-Test) rating, providing a strong yet lightweight shipping solution. The three-layer construction (liner/medium/liner) absorbs impact and resists puncture while maintaining cost-effective dimensional weight for shipping.

Made from kraft liners and starch-based adhesives that are 100% curbside-recyclable
Meets common carrier requirements for loads up to approximately 40 lb (18 kg)
Lightweight design reduces dimensional weight charges and overall freight costs
Manufactured in U.S. facilities supporting domestic jobs and consistent quality standards
Compatible with custom printing for branded packaging solutions

Any questions? Contact our support team

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Are these 20x20x12 corrugated boxes strong enough for shipping bulky or multi-piece items?

Yes. These large single-wall boxes carry a 32 ECT-C edge-crush test rating and can safely support up to 40–45 lbs when properly packed. With their broad square base and 12-inch height, they’re ideal for larger household items, bundled apparel, product kits, soft goods, or irregularly shaped items that need extra room.

Is the 32 ECT-C rating acceptable for FedEx, UPS, and USPS ground services?

Absolutely. A 32 ECT single-wall box meets the edge-crush strength standards required by all major parcel carriers for ground shipping. Ensure the box is packed with void fill or padding, sealed with strong tape, and stays under the 45 lb limit for optimal transit performance.

What does the 32 ECT-C classification mean?

ECT (Edge Crush Test) refers to the amount of pressure a corrugated board can withstand along its edge. A 32 ECT board resists 32 pounds per linear inch before collapsing. The “C” flute profile provides balanced stacking strength and shock absorption for general-purpose shipping.

How many boxes are in a case, and how are they shipped?

Each case includes 10 flat-packed boxes. Because of their larger dimensions, a lower case quantity ensures easier handling and more efficient freight packaging. Boxes ship bundled flat to save space and reduce costs.

Are these boxes made from recycled material, and are they recyclable after use?

Yes. These boxes are made from Kraft linerboard that contains approximately 30–40% post-consumer recycled content. After use, simply remove any tape or labels and recycle them through your local corrugated recycling stream.

Can these 20x20x12 boxes be stacked on a pallet?

Yes. These boxes can typically be stacked 2–3 layers high per pallet when packed within the 40–45 lb limit. Because of their large footprint, we recommend using slip-sheets or chipboard between layers and wrapping the load securely for transit.

Are these boxes suitable for direct food contact?

No. While the linerboard is non-toxic, it is not certified for direct contact with food. For food-related applications, use a food-grade poly bag or liner inside the box.

Do these boxes require special tools or adhesives to assemble?

No special tools are needed. The boxes are pre-scored for easy folding and can be assembled using standard 2"–3" wide carton-sealing tape—no staples, glue, or additional equipment required.