Stonemason here, so when I build a root cellar it stays built. A pantry you cannot diagram is a pantry you will lose tins in, so here is mine in plan view. Rotation is a moral matter -- oldest to the front, newest to the back, and a pantry that does not enforce FIFO will quietly grow a layer of 1998 at the bottom that you find with your nose.
+----------------------------+
| [door] vent ^ |
| shelf A: water (front=old)|
| shelf B: grains/legumes |
| shelf C: tins (FIFO -->) |
| shelf D: oils/fats (cool) |
| bins: roots in sand [][][]|
| damp trap o temp gauge |
+----------------------------+
The two numbers that matter and nobody logs: lowest winter temp and worst-month humidity. Tell me those and I will tell you what will keep and what will rot.