This is a box to hold UltraPro toploaders. Sure there's boxes you can buy online that are longer and hold more, but why do that when you can print it? Walls are thick because on the thinner wall test I did the walls warped. This model is sturdy and works better. Fits perfectly on a bed 225x225, let me know if you need a longer one, or the fusion model uploaded.

Printed using PETG with 20% infill

If using PLA, make sure to scale up.