I got the 35-gallon size to store some items in the basement that I wanted to be able to get to conveniently but also be able to lock up and keep out of the kids' hands. This box is absolutely perfect for what I intended. Maybe even a bit of overkill on my part (this thing is super solid) but better safe than sorry. It is very well made. Of course, I'm not truly putting it through its paces by using it in a truck bed or travelling through air ports with it or anything like that, but after receiving it and having a chance to see how well made it is, I have little doubt it would excel for those uses as well.