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How Do You Plan Categories for Large eCommerce Sites?

davissmith1224307
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Joined: 01 Sep 23
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How Do You Plan Categories for Large eCommerce Sites?

Hi everyone,

I’m in the early stages of building an eCommerce site that will eventually have hundreds of products across multiple categories. I want to make sure the category structure is user-friendly, scalable, and easy to maintain as the inventory grows. I’ve noticed that some developers work closely with an eCommerce SEO company during the build phase to ensure the structure is not only good for shoppers but also search-friendly. How do you usually approach category planning for large stores? Any best practices or examples would be great.
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fabioslemer
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Joined: 30 Aug 25
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Hi there,

When planning categories for large eCommerce sites, I’ve found it helps to think from both the customer journey and SEO perspective:

Customer-first navigation – categories should reflect how buyers naturally search (e.g., “Shoes → Running Shoes → Trail Running”). If people can’t find it in 2–3 clicks, they’ll leave.

Balanced depth – avoid going too deep (too many sub-levels) but also don’t overload a single category with hundreds of products.

Keyword research – checking what terms people search for can guide category names and structure, making them both user-friendly and SEO-friendly.

Scalability – plan for growth: think about how categories will look when you add 100+ new products.

I usually map this out on a simple spreadsheet first, then test the structure with real users before finalizing.

Curious – do you already have a product list drafted, or are you still in the planning stage?
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geraldwasap32
Posts: 51
Joined: 15 Nov 22
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I’m working on a store with a big catalog, too, and what helped me is getting very clear on how real shoppers think. The comment above is already spot-on, but I’d add a few practical points.

When you do keyword research, don’t just look at search volume. Look at how people phrase things. Sometimes the way customers describe a product feels “wrong” from a branding angle, but that’s the wording they actually type, so it’s usually better to stick with it. Also, before finalizing your structure, try grouping products a few different ways and ask a couple of friends or past customers to find specific items. You’ll spot confusing sections pretty fast.

Another thing that comes up with larger stores is product discovery outside the site. For example, if you’re planning packaging or promos later, QR codes can help send shoppers directly to the right category or even to a curated bundle. Some stores use them to link to “new arrivals” or seasonal collections, which keeps people from digging around too much.

For scalability, I keep a running list of future categories on a separate tab. As soon as a category looks like it’ll hit 60–80 products, I know it’s time to split or add filters.

It’s a bit of work upfront, but it saves a lot of cleanup later.
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