Bests & Worsts Reviews from Amazon

After hours of searching I ordered this specifically because of the above line in the description. The trouble is, the width is *exactly* 8.5 inches at the top, and it then gets ever so slightly more narrow toward the bottom. So, all of my documents are squished in, and all have a slight curl in them to fit. This also makes them difficult to remove. I'm baffled why they couldn't have made it a fraction wider just to provide some margin for error? Given that the volume is listed in Liters, I wonder if I'm hitting the round-off error of them converting their metric dimensions to U.S. units.