Stackable organizer \ filer device

These devices are legs in which you insert a sheet of 1/4 inch (6.35mm) plywood of the size you need (i.e. for paper a 10" by 12" would have some nice size). You attach the legs on the plywood, and they are stackable so you can have as many as you want (and make each level higher if need be).

When it comes to stacking it, you can use glue if you want, but so far mine as so tight that it is not needed. I do clean up corners with a knife as well for it to fit.

I also added an alternate version with an opening for 8th ply (3.175mm). Both openings have an extra .2mm size on the opening for a better fit.