Countertop shelf

Small stackable shelf. Uses 5mm dowels.

There are three (3) files: bottom, mid, and top. Mid and top can stack on top of bottom, so you can make it as tall as you like. In my application I used three stories and it's very stable.

You can use glue to secure the dowels to the sides, but I found it not to be necessary.
The holes for the dowels are 6mm diameter, as I found 5mm dowels are actually larger than 5mm.