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How to organise categories in an online store

A clear category structure helps shoppers find products faster and makes the store easier to expand.

November 1, 2026 · 6 min
How to organise categories in an online store

An online store’s categories should reflect how people search for and compare products. A structure that is too broad hides options, while one that is too detailed forces visitors to choose between too many alternatives.

Good organisation starts with the real catalogue and the questions shoppers have before opening a product page.

Start with the real catalogue

List the products you actually sell and group them by characteristics that matter to shoppers. Do not start with warehouse structure or internal product names.

  • product type
  • main use
  • intended audience
  • material or compatibility
  • collection or range

Use names people understand

A category name should clearly explain what users will find there. Avoid internal wording, abbreviations and creative names that do not explain the difference between products.

If a term can have several meanings, use a short description, filter or supporting label to remove confusion.

Choose a small number of main categories

The main menu should contain only the groups shoppers use often. The rest can be organised into subcategories or reached through search and filters.

On mobile, check that the list is easy to scan and close. A structure that works on desktop can become difficult when the menu fills the screen.

Use subcategories when they help

A subcategory makes sense when it separates products with different needs, features or intent. If it contains only a few products or repeats the same information, it may add an unnecessary step.

Keep the same logic across the catalogue and avoid two categories containing almost the same products without a clear explanation.

Connect categories, filters and products

The category provides general direction, while filters help shoppers narrow the results. Check that filters use useful criteria and do not create combinations with no products.

Each category should lead to available products with current images, prices and descriptions.

Plan the structure for SEO too

Important categories need clear URLs, descriptive titles and short content explaining the offer. Link them to relevant products and articles when the link helps navigation.

Avoid near-identical pages created only for keyword variations. A structure that helps people is a stronger starting point for SEO.

Test the structure before expanding it

Ask people who do not know the catalogue to find a product and observe how quickly they succeed. Also review searches with no results and categories that visitors abandon.

As the store grows, update the structure based on real behaviour, not only on the number of products added.

This article was prepared with the assistance of AI tools and editorially reviewed before publication.

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