These boxes are a good size. They have handle holes so they are easier to carry. The lid provides extra strength. Ideal for stacking same type and size box. Good for moving storage units garage storage and a lot more. I use them with shelf units in closets and garage too.
We are moving and these get lots of use. Move books empty boxes. Move kitchen items empty boxes. Move more stuff. They are study enough for us and easy to handle. The moving is easier because of them.
Not as strong as some but well made and will work for packing and moving. Would want something stronger if for storage that you go to often to retrieve files.