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Digital Experience Studio > Website Technology > Sitecore CMS > Sitecore Component Guide >

Two-Thirds Sublayout

Two-Thirds Sublayout

The Two-Thirds Sublayout container adds a two-column layout to a section of a webpage. The left column contains the main content and is two-thirds of the content area width. The right column contains secondary content, such as curated or contextual navigation or an aside, and is one-third of the content area width. Their combined width is equal to a one-column full-width content area.

A full width page with a two-thirds sublayout component beneath the title block
Figure 1: Example of a Two-Thirds Sublayout container. Here, the page title spans the full width of the page, with the two-thirds layout starting below the title component.

Component Information

  • Usage
  • Best Practices
  • Expected Behavior
  • Tips and Tricks
  • Related Information

Benefits

  • The Two-Thirds Sublayout container allows content authors to provide primary content, secondary content and navigation in a two-column layout, adding layout versatility to the page.
  • The Two-Thirds Sublayout container can be placed on a basic page anywhere below the Breadcrumb links. This container cannot be used on other types of pages.
  • A page can have both full-width and two-column content. The full-width content can be above and/or below the two-column content area.
  • Each column may contain one or multiple components.
  • The Two-Thirds Sublayout container extends from one edge of the content area to the other edge. It is not a full-bleed component.
  • The Two-Thirds Sublayout container does not extend to the full-page height — the two-column layout only applies to the content placed inside the container.

Example Use Cases

  • Provide a secondary navigation area for a group of related pages so that users do not have to open the mega navigation and hunt for other pages on the same topic.
  • Provide an image, text and button to the right of the main content that show additional or related information about the main content.
  • Highlight a particular page and provide an easy way for visitors to get to it.

Component Options

  • The Two-Thirds Sublayout container has right-column and left-column areas. 
  • Any component can be placed in the left column except the following:
    • Promo Bar
    • Text CTA
    • Wide Flexbox
    • Another (nested) Two-Thirds Container 
  • The following components can be placed in the right column:
    • Aside
    • Contextual Navigation
    • Curated Navigation
  • The container is not added to Data nor is it given a name. The container does not appear in Data in Content Editor.
  • When initially added, the Two-Thirds Sublayout container has two columns with a component placeholder in each, plus a full-bleed component placeholder below.

Guidelines and Limitations

  • Two-Thirds Sublayout containers are placed and edited in Page Builder.
  • Before placing a Two-Thirds Sublayout container on a page in Page Builder, have a content plan ready. This can guide you on whether a Two-Thirds Sublayout container or a Two-Thirds Page layout is the best option. 
  • While most components can be created while making a Two-Thirds Sublayout, it may be easier to create the needed components first.
  • The Two-Thirds Sublayout container is limited to the basic Page type.
  • Any number of components may be placed in either column.
  • Avoid using an Aside, Contextual Navigation or Curated Navigation in the left column. It does not make sense, from a usability standpoint, to use these outside of the right column.
  • Edit components to be placed in the Two-Thirds Sublayout following their requirements. 
  • Preview on all device types and sizes to confirm the layout adapts to mobile properly.

Accessibility Considerations

  • The content author must ensure that content displays properly in the smaller widths of right and left columns in desktop, mobile and tablet views.
  • The Two-Thirds Sublayout container will fill the full width of the content area on the webpage when viewed on desktop.
  • When viewed on a tablet or mobile device, the sublayout cells stack vertically. Components assume their tablet and mobile formats. The expected order of display of present components and content areas is as follows: curated navigation, breadcrumb, mainbody content, twothirds sublayout content, aside, contextual navigation, twothird body content, twothirdsfullbleed content, mainbody content below twothirds sublayout.
  • Preview the grid at various browser and device sizes to view the stacking order.
  • If using both Contextual Navigation and Curated Navigation, place the Contextual Navigation above the Curated Navigation, so as not to interfere with the sticky behavior of the Curated Navigation.
  • When adding a component to the Two-Thirds Sublayout container in Page Builder, drag the component into the content area and ensure that “twothirdsbody-1” displays before dropping the component.
    • If “mainbody-1” displays, the component will be dropped into the full-width content area of the page.  
    • If a component name displays, such as “Rich Text,” the component will be dropped into an existing component.
  • A two-column layout can also be accomplished by using a Two-Thirds Page template, rather than a Page template, when creating the page.
  • A two-column content area can also be created by adding a Rich Text component to the page and then adding a Column Splitter component to the content area. This can be done in a full-width content area or in the Two-Thirds Sublayout container. 

Layout alternatives:

  • Sitecore User Guide: Page Layouts (including Column Splitter)

Related components:

  • Aside
  • Contextual Navigation
  • Curated Navigation

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Frequently Asked Questions

How do I add full-width components to a page that has a Two-Thirds Sublayout container?

Click the "+" in a full width area to add a component in that space.

When dragging a component from the Components list, be sure that “mainbody-#” displays before the component is dropped into the page. The number may vary depending on the location on the page.

Instructions for Use

Add Two-Thirds Sublayout Container to a Page

In Page Builder:

  1. Select the page in the Content Tree.
  2. Click “+” button in any Placeholder box below the Breadcrumb links.
  3. Select Two-Thirds Sublayout container from list.

Alternate method:

  1. Click Components tab at the top of the Content Tree.
  2. Locate Two-Thirds Sublayout container.
  3. Drag the Two-Thirds Sublayout container to any empty placeholder area of the page below the Breadcrumb links. 
The grid placeholder areas on a page with a two-thirds sublayout component
Figure 2: The red outline in this image shows the boundaries of the Two-Thirds Sublayout container. The remainder of the page is the full-width content area. 
Add Content to a Two-Thirds Sublayout Container

Assign a component:

  1. Select a Two-Thirds Sublayout container cell placeholder.
  2. Click “+” in the cell.
  3. Choose the desired component from the list of available components.

Alternative method:

  1. Open the Components menu.
  2. Locate the desired component.
  3. Click and drag to drop it in the appropriate column.
    1. To add the component to the left column, drag to the left column and make sure that “twothirdsbody-#” displays before dropping the component. (The number will vary depending on the page.)
    2. To add the component to the right column, drag to the right column and make sure that “twothirdsnav-#” displays before dropping the component. (The number will vary depending on the page.)

Assign content to the component:

  1. In the Assign content item window, choose the component data to use:
  2. For existing components, select them from the page’s Data folder or from the appropriate shared folder.
  3. For new components, select Create new, type in the component title and hit enter.
  4. Once the component data is selected, click on the Assign button in the lower right corner.
  5. Add or edit component data, per the component requirements.
  6. Repeat the process for other areas in the sublayout container. Multiple components can be added within each container column.
  7. Preview the page.
  8. Click Actions and Submit to send the page to the publishing workflow.
Mid-Page Example
A two-third sublayout component followed by a full width section
Figure 3: A full width content area appears below a two-thirds sublayout component. 

Tool Use Guide

*Follow component-specific instructions.

 

Documentation updated: June 29, 2026

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