To use a custom Lightning
component in Community Builder,
you must configure the component and its component bundle so that they’re compatible.
Configure Components for Communities
Make your custom Lightning components available for drag and drop in the Lightning Components pane in Community Builder.
Create Custom Content Layout Components for Communities
Community Builder includes several ready-to-use layouts that define the content regions of your page, such as a two-column layout with a 2:1 ratio. However, if you need a layout that’s customized for your community, create a custom content layout component to use when building new pages in Community Builder. You can also update the content layout of the default pages that come with your community template.