The boxes were sturdy and serve the purposes for which I bought them. I purchased the boxes as extra boxes because file cabinets were filled and need to be cleared out.
this is a very basic Duty box. Use an exacto knife or similar to cut apart. Do not try to pull apart without doing this or the Box will fold where you do not want it to. And even at that you have to be very careful when assembling so as not to bend the Box where it's not supposed to bend. If successful it is a fairly substantial box when assembled. However the slightest Bend in the sidewalls greatly diminishes it's sturdiness and durability. For the price it is a decent box. Would recommend for light duty.