Need advice on menu structure

Hi there,

I’m new to wordpress but right now I’m building a wordpress/woocommerce e-shop. I had no problems with install and wordpress theme. But when it come to pages/ main menu and product categories it stoped.

Here is link to what I want to look: https://www.dropbox.com/sh/f839et9d7o8meq8/AACysukfp6KgW8Co80OSpKbIa?dl=0

I want that I will have several main pages as shop pages like FURNITURE, WALLPAPERS,LIGHTING, BATHROOM. Under what I need to put categories for example FURNITURE>SOFA>SOFA collection DEVON. For main menu I think I’m clear that need them make as pages/shops. And under that main menu I can’t understand what to do. On the SOFA I need only to show product collections under what I need to show description of collection, all options of that product collection (fabrics, arms, legs, etc.) and ready e-shop products.
How shoud I do, make pages and subpages? Mix pages and product categories, if it’s at all possible? Hope You get what I need.