Modular low shelf

This is a very versatile modular shelving system that I am using to increase storage space above oven so that stuff put on over does not get heated up when oven is in use. You can adopt it for completely separate use. I've included an additional file if you need to have more than 3 rows and hence need some shelf with slots on all 4 sides. I printed mine using PETG so as to within the oven's heat.