I have been using these for the last couple of years. They are the perfect size (some are so big that you can't pick them up after you fill them). Easy to put together and saves me money on what I used to purchase. They are definitely medium duty boxes in that you should only stack them 3 high or they collapse down but my shelves only allow for 2 high so they are great for that.
Glad we ordered this multiple box set... turned out we needed more than we first thought. Having them on hand for future jobs is nice too - they are flat and store easily. Good sturdy box after assembled.
The STAPLES ECONOMY STORAGE BOXES are excellent for archives and creating space in office cabinets.With hardly any effort they assemble with ease handling and stacking makes record keeping and storage a welcome relief. Being so sturdy I find that it makes for a great seasonal clothing storage and creats less clutter. Have been using the storage boxes in the garage for storing reusable parts fishing gear and tackle. Sewing threads patterns are easily and conviently stored in the boxes. I will use and recommend this product to all my friends.