Ok for storage boxes I thought they would be little stronger but for what we needed them it work fine since we were not putting lots of weight on them. Not sure if it would hold the weight when being full. I guess if you only place papers on them maybe. I'm buying another set because like i said for our project they worked just fine.
I ordered a pack of 10 Staples Basic Duty Storage Boxes then ordered another pack. These boxes are easy to assemble & sturdy. If you are looking for a clean convenient inexpensive way to move or store your papers books magazines CDs etc. these boxes do the job.