This is a modular shelf that I made for my stove. The pictures only show one one complete unit, but you can put one shelf next to each other with or without the side walls for a continuous or partitioned design.

The shelf is 82mm deep, which is just enough for a larger sized bottle of olive oil. The shelf is 228mm wide without the side walls or 212mm between the inside of the walls installed. 

I printed in PETG and used supports on the front hooks on the bottom of the base shelf. You may need to modify these hooks based on your needs. I also used brims for the component prints to give them a little more support from tipping over, especially the bolts. I did include some .3mf files if you wanted to see how I did the supports.