Made in USA

A 20x20x6 corrugated box (32 ECT) from a case of 25 is shown empty with all flaps open and angled to display its inside and sides against a white background.

20x20x6 Corrugated Boxes (32 ECT) - Case of 25

Name: 20x20x6 Corrugated Boxes (32 ECT) - Case of 25
Brand: ePackage Supply Production
SKU: E101451
Price: 55.92 USD
Availability: InStock

1 - 3

$55.92$2.24/Unit

4 - 9

$54.53$2.18/Unit

-2.5%

10 - 14

$53.17$2.13/Unit

-4.9%

15 - 19

$51.83$2.07/Unit

-7.3%

20 - 24

$50.55$2.02/Unit

-9.6%

25+

$49.28$1.97/Unit

-11.9%

10 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 × 20 × 6 in. corrugated cartons deliver everyday durability with a 32 ECT-C single-wall construction. The large square design provides expansive surface area for flat, wide items while maintaining a low profile, perfect for products that require extensive length and width without excessive height.

Supplied flat in a convenient case of 25, the boxes assemble in seconds, store compactly between projects, and recycle easily after use. From e-commerce fulfillment lines to warehouse pick-pack stations, they are the go-to choice for shipping artwork, large documents, flat-packed furniture, textiles, and a wide range of oversized flat merchandise.

The economical 25-count bundles help lower per-box costs while keeping your packing line stocked without over-committing valuable storage space.

Key Advantages

32 ECT single-wall board certified for up to 50 lb gross weight with reliable stacking strength
Large square design (20 × 20 × 6 in.) maximizes surface area for flat, wide items while optimizing shipping efficiency
Made from single-wall C-flute corrugated kraft board that's 100% recyclable and biodegradable
Ships and stores flat to save valuable warehouse space until needed
Natural kraft exterior accepts labels, markers, and ink-jet printing for easy identification
Convenient 25-box case keeps supply levels steady for small and mid-size operations
Three-layer construction absorbs impact and resists puncture during transit

Ideal Applications

Artwork & Prints

Perfect for shipping framed artwork, canvas prints, posters, and large photographic prints with maximum protection and minimal bending risk.

Flat-Pack Furniture

Ideal for shipping disassembled furniture pieces, shelving units, table tops, and other flat-packed items that require wide surface area.

Textiles & Apparel

Excellent for shipping folded clothing, linens, blankets, and fabric materials that benefit from flat, wrinkle-free transport.

Food Service & Catering

Safely pop open bulk ingredient buckets of sauces, pickles, grains, or oils without contaminating contents or damaging the lid seal.

100% Recyclable

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

32 ECT Certified

Meets the 32 lb Edge-Crush Test standard, providing the compression strength required for regular slotted cartons used in standard shipping applications.

Product Details

These corrugated shipping boxes 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 for a wide range of applications.

Three-layer construction (liner/medium/liner) that absorbs impact and resists puncture
Kraft liners and starch-based adhesives that are 100% curbside-recyclable and biodegradable
Lightweight design reduces dimensional weight charges and overall freight costs
Made in USA to support domestic jobs while maintaining consistent quality standards
Compatible with standard shipping labels, markers, and ink-jet printing systems

Any questions? Contact our support team

Are these 20x20x6 corrugated boxes strong enough for shipping wide, flat items?

Yes. With a 32 ECT-C edge-crush test rating, these single-wall boxes can safely hold up to 40–45 lbs when packed properly. The large square base and shallow height make them ideal for shipping trays, framed artwork, printed materials, folded apparel, or flat product kits that need surface area more than depth.

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

Absolutely. A 32 ECT single-wall box meets or exceeds the minimum strength requirements set by major carriers for ground shipping. Just be sure to use void fill if needed, tape all flaps securely, and stay within the weight limit for best results.

What does the 32 ECT-C classification mean?

ECT (Edge Crush Test) measures the box’s ability to withstand pressure along its edge. A 32 ECT board resists 32 pounds per linear inch before failure. The “C” flute profile offers a solid balance of stacking strength and cushioning performance in single-wall packaging.

How many boxes are included, and how are they shipped?

Each case contains 25 boxes, shipped flat in a bundled package to minimize freight costs and save storage space. Assembly is quick—just square up the box, fold the flaps, and tape the bottom securely.

Are these boxes made from recycled content, and are they recyclable?

Yes. These boxes are made from Kraft linerboard that typically includes 30–40% post-consumer recycled fiber. After use, remove any tape or labels and recycle them through your local corrugated collection stream.

Can these 20x20x6 boxes be stacked on a pallet?

Yes. Their shallow height allows for more layers per pallet. When loaded within the 40–45 lb limit and stacked uniformly, these boxes can be safely palletized. For added stability, use slip-sheets or chipboard between layers and secure the stack with stretch wrap.

Are these boxes safe for direct food contact?

No. Although the linerboard is non-toxic, it is not certified for direct food contact. If using for food-related applications, we recommend inserting a food-grade poly bag or liner.

Do I need special tools or adhesives to assemble the boxes?

Not at all. These boxes are pre-scored for fast folding and only require standard 2"–3" wide carton-sealing tape for assembly—no glue, staples, or special equipment necessary.

Any questions? Contact our support team

20x20x6 Corrugated Boxes (32 ECT) - Case of 25

Key Advantages

Ideal Applications

Product Details

Customer Reviews