UBOXES Large Moving Boxes 20" x 20" x 15" (Pack of 12)

TL;DR: Good value for shipping bulky light items. Easy to build and tape. Feels underbuilt for dense loads, so I recommend you reinforce and keep weights conservative. I bought this 12 pack for outbound shipping, not moving, and the size proved good enough for soft goods and “irregular” (for lack of better terms) items. At 20 by 20 by 15 inches you get generous volume without creating a back problem for the carrier. Assembly is straightforward. Scores are clean, flaps meet square, and standard packing tape bonds without curling. Once taped, the boxes handle light freight reliably. Strength is consistent with standard single wall. That is fine for things you may have like pillows, apparel, plush, bedding, and lightweight plastics. It is less fine for dense merchandise such as books, small appliances with sharp edges, hardware, and canned goods. Bottom panels begin to bow when you push weight toward the mid 30s, and corners show compression if heavier cartons ride on top during transit. I did not see glue seam failures, but I would not trust this size and wall for conveyor abuse with heavy contents. For shipping, one practical note about cost control. A box this large often triggers dimensional weight with major carriers. That means you pay for the space more than the scale weight on many services. If you are sending light items, the economics make sense. If you are sending dense items, a smaller footprint box will usually reduce both damage risk and postage. What worked well • Value per box is strong for volume shipping of light goods • Easy, repeatable assembly and square flaps that close flush • Tape adhesion is good with 2.2 to 2.7 mil acrylic or hot melt • Interior is clean and low on box dust, which helps when packing textiles Where it struggled in real use • Single wall flexes with dense loads and long conveyor runs • Corners dent when stacked under heavier cartons • Not ideal for heavy or fragile freight unless you add structure Simple upgrades that improved outcomes 1. H tape the bottom and the top, then add one crosswise strip on the bottom. 2. Run a strip of tape inside along the bottom seam to reduce sag. 3. Add corner posts or folded scrap corrugate for hard edged items. 4. Use a 3 inch tape for better edge coverage and fewer peel ups. 5. Cap ship weights around 30 to 35 lb for this size if you want consistent delivery quality. 6. For fragile or dense goods, double box with a smaller inner carton and at least two inches of void fill. Bottom line For outbound shipments of bulky light products these boxes are a cost effective, time saving choice. They are not a strength monster, so treat them like standard single wall. Reinforce the bottoms, protect the corners, and keep weights modest. Pair them with smaller heavy duty boxes when the contents are dense or fragile. Used that way, they do exactly what you want without inflating your packaging budget. Thanks for reading!! (Assuming you did)

I recently used the UBOXES Large Moving Boxes (20" x 20" x 15", Pack of 12) for a big move, and they exceeded my expectations! These boxes are exactly what you want when you need durable, reliable packing supplies. 📦 Great Size: The 20" x 20" x 15" dimensions are super versatile — roomy enough for bulky items like blankets, pillows, clothing, and kitchen gear, but not so large that they get overly heavy or awkward to lift. 💪 Sturdy Construction: The cardboard is thick and solid, which gave me confidence during packing and moving. Even when stacked, these boxes held their shape well and didn’t collapse under weight. 🛠️ Easy to Use: They arrived flat and clean, and popped together quickly. I was able to tape them up in minutes and start packing right away. 📍 12 Boxes is a Great Pack: This size pack was perfect for my whole house — everything from living room to bedroom got packed up efficiently. It was enough without being excessive. ⭐ Durable & Reliable: These boxes stood up to a long day of moving and rough handling without tearing or buckling. Overall, the UBOXES Large Moving Boxes are a reliable, good‑quality choice for moving or storage. They made packing so much easier — highly recommend! 📦✨

What can I say? I ordered these online because I’m busy and I needed to get boxes for a move. They came super fast. The quality is excellent. They were very sturdy and excellent quality boxes. I bought many different sizes from small to x large. They were packaged very well and the next time I move, I will be ordering the same thing. Great service quick delivery.

Strong and sturdy. Easy to assemble

These boxes are well made and sturdy, but may be too big for residential moving. You end up packing so many things inside that they’re too heavy to move. Also, I tried two types of packing tape and neither would stick to the cardboard, so many of the boxes came undone during the move. Not ideal.

They are boxes. Came in timely manner. They are the correct size and durable.

These boxes were very sturdy and recommend for moving. Cheaper than local stores.

Good to reusable nice quality too