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E-commerce Product Hierarchy: How to Structure Your Catalog

Six ecommerce product category hierarchies to copy: fashion, electronics, grocery, home, beauty and B2B tools, each with top level, subcategories and filters.

E-commerce Product Hierarchy: How to Structure Your Catalog

Imagine a shopper landing on your e-commerce site, instantly finding exactly what they need. A well-defined product hierarchy makes this seamless experience possible, transforming casual browsers into paying customers. This guide will show you how to structure your product catalog for optimal navigation and increased sales.

What is a Product Hierarchy?

A product hierarchy is the structured organization of products in an e-commerce catalog. It's a system that categorizes items into logical groups and subgroups, making it easy for customers to find what they're looking for. Think of it as a digital filing cabinet for your products, ensuring everything is neatly organized and easily accessible.

Without a clear product hierarchy, your online store becomes a digital maze. Customers struggle to find what they need, leading to frustration and lost sales. A well-structured hierarchy, on the other hand, enhances the user experience, boosts SEO, and ultimately drives revenue.

This article shows complete category trees you can copy. For the short definition and the standard levels, see what a product hierarchy is. For design rules such as depth, breadth per level and tree testing, use the product hierarchy design guide.

Why is a Good Product Hierarchy Important?

A well-defined product hierarchy offers several key benefits:

  • Improved User Experience: Intuitive navigation allows customers to quickly locate desired items, leading to a more satisfying shopping experience.
  • Enhanced SEO: A clear structure helps search engines understand your website's content, improving search rankings and driving organic traffic. Consider how product categorization impacts Google Shopping results.
  • Increased Conversion Rates: When customers can easily find what they need, they're more likely to make a purchase.
  • Better Data Analysis: A structured hierarchy allows you to track product performance at different levels, providing valuable insights for inventory management and marketing strategies. Understanding your average order value (AOV) by category, for example, can inform pricing and promotional decisions.
  • Simplified Product Management: Organizing your catalog becomes easier, especially as your product range expands. Using a PIM system can streamline this process even further.

How to Build an Effective Product Hierarchy: A Step-by-Step Guide

Here's a practical guide to creating a product hierarchy that works for your e-commerce business:

Step 1: Define Your Top-Level Categories

Start by identifying the broadest categories that encompass your entire product range. These should be mutually exclusive and collectively exhaustive, meaning every product fits into one and only one top-level category.

For example, if you sell clothing, your top-level categories might be: Men, Women, and Kids. If you're in electronics, they might be TVs, Audio, Computers, and Mobile. Choose categories that are intuitive and reflect how your customers think about your products.

Step 2: Break Down Categories into Subcategories

Next, break down each top-level category into more specific subcategories. Continue to refine these subcategories until you reach a level of detail that allows customers to easily find individual products.

For example, the "Women" category might be broken down into: Dresses, Tops, Bottoms, Outerwear, and Accessories. The "Tops" subcategory could then be further divided into: T-shirts, Blouses, Sweaters, and Tank Tops. Aim for a balance between granularity and simplicity – too many subcategories can be as confusing as too few. It is helpful to review best ecommerce categories for inspiration.

The Women branch of a fashion category tree

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Each level narrows the choice: Women splits into five subcategories, and Tops splits again into four product types.

Step 3: Assign Attributes to Each Category Level

Attributes are the specific characteristics of a product, such as size, color, material, and brand. Assign relevant attributes to each category level to help customers filter and refine their search.

For example, the "T-shirts" subcategory might have attributes like: Size (S, M, L, XL), Color (Red, Blue, Green), Material (Cotton, Polyester), and Sleeve Length (Short Sleeve, Long Sleeve). Effective attribute management is crucial for guided navigation and faceted search.

Step 4: Implement Breadcrumbs for Easy Navigation

Breadcrumbs are navigational aids that show customers their current location within the website hierarchy. They allow users to easily move up and down the hierarchy, making it simple to explore different product categories.

For example, a breadcrumb trail for a specific dress might look like this: Home > Women > Dresses > Floral Print Dress. Ensure your breadcrumbs are clear, concise, and visually distinct from the rest of your website's content.

Step 5: Regularly Review and Refine Your Hierarchy

Your product hierarchy is not a static entity. As your product range evolves and customer behavior changes, you'll need to regularly review and refine your hierarchy to ensure it remains effective.

Analyze your website's search data to identify popular search terms and areas where customers are struggling to find what they need. Conduct user testing to gather feedback on the usability of your hierarchy. Use this information to make adjustments and improvements as needed. A PIM system with AI enrichment capabilities can suggest categories and fill missing attributes based on your product data.

Ecommerce Product Category Hierarchy Examples

Here are six category hierarchies by store type. Each shows the top level, one subcategory branch and the filters (attributes) that branch needs:

Six category hierarchies by store type

Electronics retailerTVs, Audio, Computers, Mobile, AccessoriesUnder TVs: Smart TVs, OLED TVs, LED TVs, 4K TVs, 8K TVsUnder Smart TVs: Screen Size, Resolution, Brand, Operating System
Fashion retailerMen, Women, KidsUnder Women: Dresses, Tops, Bottoms, Outerwear, AccessoriesUnder Dresses: Style, Length, Color, Material, Sleeve Length
Grocery storeFresh, Pantry, Dairy & Eggs, Frozen, Drinks, HouseholdUnder Dairy & Eggs: Milk, Cheese, Yogurt, Butter, EggsUnder Milk: Fat Content, Volume, Organic, Lactose-Free, Brand
Home & garden storeFurniture, Kitchen & Dining, Bedding & Bath, Garden, Lighting, DecorUnder Kitchen & Dining: Cookware, Bakeware, Cutlery, Tableware, Small AppliancesUnder Cookware: Material, Diameter, Hob Type, Dishwasher Safe, Brand
Beauty storeSkincare, Makeup, Hair, Fragrance, Body, MenUnder Skincare: Cleansers, Moisturizers, Serums, Sunscreen, MasksUnder Moisturizers: Skin Type, Skin Concern, Volume (ml), SPF, Fragrance-Free
B2B tools and suppliesFasteners, Power Tools, Hand Tools, Safety Equipment, Electrical, PlumbingUnder Fasteners: Screws, Bolts, Nuts, Washers, AnchorsUnder Screws: Thread Size, Length, Head Type, Material, Pack Quantity
Showing 6 of 6 rows
Compare how deep each store goes: every branch ends in filters that only make sense for that product type.

Tools to Help You Manage Your Product Hierarchy

Manually managing a complex product hierarchy can be challenging, especially for businesses with a large product catalog. Fortunately, several tools can help you streamline the process:

  • Product Information Management (PIM) Systems: PIM systems provide a central repository for all your product data, allowing you to easily create, manage, and distribute product information across multiple channels. They offer features like category management, attribute management, and data validation to ensure the accuracy and consistency of your product data.
  • E-commerce Platforms: Most e-commerce platforms, such as Shopify and Magento, offer built-in features for creating and managing product hierarchies. These features allow you to categorize products, assign attributes, and create breadcrumbs. Consider how your Shopify marketplace listing benefits from a clear hierarchy.
  • Spreadsheets: While not ideal for large catalogs, spreadsheets can be a useful tool for planning and organizing your product hierarchy. You can use spreadsheets to map out your categories, subcategories, and attributes before implementing them in your e-commerce platform or PIM system.

Conclusion

A well-defined product hierarchy is essential for creating a positive shopping experience, improving SEO, and driving sales. By following the steps outlined in this guide, you can create a product hierarchy that makes it easy for customers to find what they need and helps your e-commerce business thrive. Take the time to plan and implement your hierarchy carefully, and regularly review and refine it to ensure it remains effective as your business grows. Consider using a product taxonomy to further enhance your product organization.

Diego Nijboer

CTO and Co-Founder at WISEPIM, building AI-powered solutions that transform product data management for e-commerce businesses. Over 10 years of experience solving complex technical challenges in e-commerce and PIM systems.

Frequently asked questions

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Aim for 3-4 levels of categories. Too few levels and customers won't be able to narrow down choices; too many and they'll get lost in the subcategories.

Review your hierarchy at least quarterly. Analyze search data and customer feedback to identify areas for improvement.

Yes, PIM systems streamline product data management, including categorization and attribute assignment, making it easier to maintain a consistent and accurate product hierarchy.

Breadcrumbs are navigational links that show a user's path through the website. They improve user experience by allowing users to easily navigate back to higher-level categories.

A category is a broad grouping of products, while a subcategory is a more specific division within a category. Subcategories help customers refine their search and find exactly what they need.

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