20x20x6 Corrugated Boxes (32 ECT-C) - Case of 25
Frequently Bought Together
20" x 20" x 6" 32-ECT CORRUGATED SHIPPING BOXES
These 20 × 20 × 6 in. corrugated cartons deliver the everyday durability shippers expect from a 32 ECT-C single–wall box. 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 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, pizza boxes, and a wide range of oversized flat merchandise.
VALUE CASE OF 25
Buy in economical 25-count bundles to lower per-box costs and keep your packing line stocked without over-committing valuable storage space.
KEY ADVANTAGES
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
Perfect for pizza delivery, large catering trays, sheet cakes, and other food service applications requiring wide, shallow containers.
CORRUGATED FIBERBOARD ADVANTAGE
These 20" x 20" x 6" cartons are engineered from single-wall, C-flute corrugated kraft board with a certified 32 ECT (Edge-Crush-Test) rating, giving packers a strong yet lightweight shipping option. The material offers:
- Three-layer construction (liner / medium / liner) that absorbs impact and resists puncture
- 32 ECT rating that meets common carrier requirements for loads up to ≈50 lb (23 kg)
- Kraft liners and starch-based adhesives that are 100 % curbside-recyclable and biodegradable
- Lightweight design that lowers dimensional weight charges and reduces overall freight costs
PERFORMANCE PARAMETERS
32 ECT compliant—capable of withstanding ≈32 lb per linear inch of edge load before failure
Up to 50 lb (23 kg) of evenly distributed contents for typical parcel and LTL shipments
20" L × 20" W × 6" D (1.39 ft³ / 39.3 L) for high-capacity flat packing
PRODUCT FEATURES
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.
Compatible Products
These products are designed to work perfectly with your selected item:
