Choosing the Right Size Chart Layout for Your Shopify Store

Does your size chart help customers buy, or does it get in the way? For a Shopify merchant, the size chart layout you choose can be the difference between a confident purchase and a frustrated exit. When a shopper is hovering over the 'Add to Cart' button, they need to know exactly which size will fit them—without losing their place on the page.

Providing a clear, accessible size guide is one of the most effective ways to reduce fit-related returns and build customer trust. However, not every product page is built the same. A simple t-shirt might only need a small table, while a technical winter parka with multiple measurement points requires more organization. Choosing the right layout for your size data is a critical part of your store's UX strategy.

The Inline Table: Best for Simple Sizing

An inline size chart layout displays the measurement table directly on the product page, usually right below the description or variant selectors. This is the most friction-less option because the information is already visible; the customer doesn't have to click or tap anything to see it.

When to use it:

• When your size chart is relatively small (e.g., 3-4 columns and 5-6 rows).
• When you want the sizing information to be a primary part of the product's value proposition.
• For products where fit is straightforward, like basic apparel or accessories.

By keeping the data inline, you ensure that mobile shoppers—who often scroll past collapsed sections—don't miss the vital information they need to convert.

The Accordion: Organizing Complex Data

If you have multiple size charts (for example, one for the garment and one for body measurements) or a very detailed guide, the accordion layout is your best friend. This layout hides the data behind a clickable header, expanding only when the user wants to see it.

When to use it:

• When you have a lot of technical specifications or multiple tables.
• When you want to keep the product page clean and minimize vertical scrolling.
• To group a size table with a visual measurement guide.

Accordions allow you to provide exhaustive information without overwhelming the shopper. They are particularly effective on mobile devices where screen real estate is at a premium.

The Modal Trigger: Saving Precious Screen Space

The modal (or popup) layout is the classic choice for many high-fashion and luxury brands. Instead of taking up any permanent space on the page, the size guide is accessed via a small link or button—often labeled "Size Guide" or "Find My Fit."

When to use it:

• When your theme is highly visual and you want to keep the focus entirely on product photography.
• When you want to offer a dedicated, focused environment for the customer to measure themselves.
• For complex sizing systems that require a full-screen experience to be legible.

Modals are great for "focusing" the user. When the modal opens, the rest of the store fades away, and the shopper can concentrate on finding their size using your visual measurement guide.

How Supra Size Chart Helps

Supra Size Chart is a free Shopify app designed to give you total control over your size chart layout. Whether you prefer an inline table, a clean accordion, or a professional modal trigger, you can switch between display modes with a single click in the app settings.

Beyond just layout, the app features a unique visual measurement guide. You can drop labeled measurement lines onto garment flats or body silhouettes, showing shoppers exactly where to measure. Plus, with the metric ⇄ imperial toggle, your customers can switch between inches and centimeters instantly, ensuring a perfect fit for a global audience.

Managing your charts is just as flexible. You can assign charts to products using rule-based assignment, or import/export your data via CSV and JSON. Best of all, Supra Size Chart is completely free to use.

Conclusion

There is no one-size-fits-all approach to size charts. The best layout depends on your product complexity and your brand's aesthetic. By testing different layouts—inline, accordion, or modal—you can find the sweet spot that maximizes conversion and minimizes returns. Ready to upgrade your store's fit experience? Try Supra Size Chart today.