What information is best placed in the Internet shop in the categories of 1st and 2nd level of commodity cards or cards with sections of the following categories?

Hello! Please tell me, I create a lot of regional furniture store in each region are different goods, and when you build the product categories I have noticed that many online stores in the categories of 1st and 2nd level do not take a commodity card, and the output blocks called sections with the following categories, and in category three output cards with goods. If I do so, then categories 1 and 2 level in different regions will be duplicated and the search engines can throw them away.

And if I get at all levels of commodity cards, so can expand the semantics and due to the unique information, the page will not be duplicated in different regions.

Example product categories:
- Upholstered furniture (1st level)
- - Couches (2nd level)
- - - Angular sofas (3rd level)
- - - Sofas direct (3rd level)
- Chairs (2nd level)
- - - Baby seats (3rd level)
- - - The rocking chair (3rd level)

That begs the question, what is old is better placed in categories 1-and 2-level commercial cards or cards with sections of the following categories?