Designed these to hold our pieces while playing our 3D printed Catan. For better storage I put notches and bumps so that they will stack easily and added a slot to hold the card with build/trade ratios on it for the newer players.

This will hold 15 roads, 5 settlements, and 4 cities for the standard base game. 

I've loaded profiles for 1, 2, or 4 pieces to be printed on 1 plate.