What to Look For in a Shopify Theme - and What to Ignore

The Shopify theme you choose affects everything: performance, flexibility, long-term maintenance cost, and how much custom development work you'll need.

Most merchants choose themes based on demo and screenshots. However, there is more to consider.

Code Quality and Architecture

The most important thing about a Shopify theme is invisible to non-developers: the quality of the underlying code. A well-architected theme is modular, readable, and organised in a way that makes customisation straightforward without creating fragile interdependencies.

Look for themes that follow Shopify's official theme development guidelines and use the section/block architecture introduced with Online Store 2.0.

Check whether the theme has been updated within the last six months — theme developers who maintain active release schedules are keeping pace with Shopify's platform changes.

How long have they been building themes? What are their reviews like? How do they manage theme support? The list goes on...

Performance: Look at the Numbers, Not the Demo

Theme demo sites are not representative of how a theme will perform with a real product catalogue. Demo sites are stripped down, lightly stocked, and optimised to look good.

A theme that scores 95 on PageSpeed Insights in demo form may score 65 with 2,000 products, a handful of third-party scripts, and ten apps installed.

The more useful performance signal is the theme's approach to JavaScript. The difference in real-world performance between a well-optimised and a poorly-optimised theme is often 20–30 Lighthouse points, which can translate directly to conversion rate.

Flexibility for Your Specific Use Case

Not every theme is right for every product type. A theme designed for a curated fashion boutique with 50 products will handle a hardware store with 5,000 SKUs very differently.

Before committing to a theme, test it with your actual content: your product titles, your description lengths, your image aspect ratios, your category structure.

Pay particular attention to the collection and filtering architecture — for stores with complex catalogues, the quality of filtering and navigation is critical.

What to Ignore

Homepage animations. Almost every premium theme offers animated entrance effects that look impressive in demos and are almost always the first thing we disable on a live build.

The number of pre-built layouts — themes advertising 20+ homepage layouts are selling optionality that rarely reflects how stores actually get built.

And price: the difference between a £180 and a £400 theme is usually not meaningful relative to the total project cost. The cost of working around a poorly-built theme will exceed the price difference many times over.

The Themes We Use and Why

We've previously built our own proprietary theme from scratch — which gave us deep insight into what a well-architected theme actually requires. That experience informs how we evaluate commercial themes now.

The premium Shopify theme ecosystem has matured considerably, and maintaining a proprietary theme in-house has a real overhead cost that's difficult to justify when the best commercial options have been stress-tested across thousands of stores and maintained by dedicated teams.

We have some preferred themes and theme providers, however, we always start a project by matching the theme to the specific requirements of the catalogue and commercial objectives — not by defaulting to a favourite.

If you're planning a Shopify build and want advice on theme selection for your specific catalogue and requirements, we're happy to help.

→ Talk to us about your Shopify build

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