The border setting controls how the size chart’s outline is displayed. This helps you add definition or structure to the chart, depending on your store’s style.
Prerequisites
A size chart created
Step 1: Access border settings
In Shopify, go to Apps → SmartSize → Size charts.
Open a chart and scroll to the Size chart border section under Global settings.
Step 2: Select a border style
Choose from the available options:
Tunnel – displays a border only at the top and at the bottom
Lines – displays a border in each of the rows (our preferred!)
Boxed border – displays a grid-like framing on the table
Step 3: Save
Click Save in the save bar to record your changes
Expected Result
Your size chart will appear with the chosen border style on all devices.
Additional Information
Borders are global settings applied across all charts.
Borders can help improve readability if your theme has a light background.