Aviditi HD361212DW Heavy-Duty Double Wall Corrugated Cardboard Box 36" L x 12" W x 12" H, Kraft, For Shipping, Packing and Moving (Pack of 10)

These boxes are very sturdy and worked perfectly for my needs. However, I would have preferred to buy only the quantity I actually needed and not a bulk amount. I now have 12 extra boxes in storage that I prefer not to have, but I couldn't find this size anywhere else and forfeited some storage space in order to get what I needed now. I don't like being limited to bulk buying on certain products.

Really strong double-wall cardboard. Accurate cut and creasing. Every box went together perfectly, and have not had any shipping damage. Recommended for heavy items you want to keep inside, or delicate items you want protected from the outside. One warning is expect "dimensional weight" to be applied to shipping this size box, and the cross section stated as 12 x 12 may measure 12 x 13 depending on the amount of bulge on the closed flaps.

A few of them ripped even though the proper weight was in the boxes and had good packing tape on them. Only reason I'd buy them again is because the price isn't bad for how many I got for the special sizing.

This is a solid box which I shipped a very valuable musical instrument in. I shipped with my case enclosed in box and actually cut out an additional box to make a double box out of it and arrived to the destination from AZ to Kansas City MO. with no problem at all.

I bought these to ship something that I sold online. Only needed one, but my back was against the wall so I bit the bullet and bought 15, hoping that I end up with more things this size to ship to make it worth it. I'm going to have to sell a LOT of items to make this $60 worth it, because these are the weakest, lowest quality boxes that I've ever used before. I had to wrap the whole thing in packing tape (which was about as much $$ worth of packing tape as these terrible boxes), and am just hoping beyond hope that the package actually makes it to its destination and I didn't just lose even more money.

Very sturdy! Used this for checked luggage - payed normal checked luggage price as it is within the size requirements! Worked great!

I bought this box to ship koi and it was really weak and almost gave out. Luckily the koi barely made it.This might be fine for some light items but do not use it for heavier items.

Not real sturdy, especially because of the length. Would be okay if it was used for something that couldn't get damaged in shipping. I had to reinfoce the box to protect the item I was shipping.