How to say something like this?

[Johnny]

Story or Storey is used to talk about the building.

What can I use to talk about the layer of a bookshelf or any other shelf? Can layer do?

[MikeNewYork]

Story or Storey is used to talk about the building.

What can I use to talk about the layer of a bookshelf or any other shelf? Can layer do?

I would use "shelf".

First shelf, second shelf, top shelf, etc.

[Johnny]

I would use "shelf".

First shelf, second shelf, top shelf, etc.

Thank you Mike,

So I can say I have a 5 shelves bookshelf, or 3 shelves box

[MikeNewYork]

Thank you Mike,

So I can say I have a 5 shelves bookshelf, or 3 shelves box

We rarely pluralize adjectives.

5-shelf bookcase or 3-shelf box

a bookcase with 5 shleves or a box with 3 shelves