I am looking for a good way to store multiple boxes of MTG boosters.
Currently I just store them stacked on one another but I think I can do better.

Before I take on this task, just curious if anyone knows of something already available to accomplish this.

Are you asking for a way to store sealed, unopened booster boxes?
Or are you storing your cards in booster boxes and looking for a better way of storing them?

Looking to store sealed booster boxes.

Maybe a safe or locked cabinet? I'm not sure what you're asking.

I currently have around 20 sealed boxes.
They are currently sitting on a shelf stacked on one another.

I am going to be moving them, and would like to devise a method to store them better as I can only stack them so high and the extra weight could be an issue moving forward.

Was curious if something existed similiar to this, but for booster boxes.

check Ikea? http://www.ikea.com/
I'm most positive you'll find some type of shelving unit for cheap that will suit your need