Theme structure
The overall layout of your online store is controlled by a theme. Your theme uses templates to specify the type of content that appears in your store. Each template can contain up to 20 sections.
Partitions are modules that you can use to customize the layout of your online store. You can create templates, and then customize them by adding, removing, and rearranging sections and blocks within them. You can save up to 20 sections in each template, and then apply them to new or existing pages and products using the theme editor or your Shopify admin.
Partitions can be customized and added to any page in your online store, except for the gift card and checkout pages.
Original details of Shopify merchant official website:
Theme structure
The overall layout of your online store is controlled by yourtheme. Your theme usestemplatesto specify what types of content appear in your store. Each template can contain up to 20sections.
Sections are modules that you can use to customize the layout of your online store. You can create templates which can then be customized by adding, removing, and rearranging sections and theblockswithin. Up to 20 sections can be saved in a template, and then applied to new or existing pages and products using thetheme editoror yourShopify admin.
Sections can be customized and added to any page of your online store, with the exception of gift card and checkout pages.
Article content source: Shopify merchant official website