What Is Purging in SketchUp?

What Is Purging in SketchUp?

In SketchUp, purging is a process of removing unused components, materials, styles, and other elements from your model. It helps to optimize the file size and improve the performance of your SketchUp project. Purging is an essential step in maintaining a clean and organized model and ensuring smooth workflow.

Why Purge Your SketchUp Model?

Purging your SketchUp model has several advantages:

  • Reduced File Size: When you delete components or materials from your model, they are not entirely removed but rather stored in the file. These unused elements can accumulate over time and significantly increase the file size.

    By purging them, you can reduce the file size and make it more manageable.

  • Better Performance: A large file size can slow down your SketchUp project, especially when working with complex models. Purging removes unnecessary data, improving performance and responsiveness while navigating or editing.
  • Cleaner Model Organization: Unused components clutter your model’s component browser, making it difficult to find and manage active elements. Purging helps streamline your model organization by removing unwanted components and styles.

How to Purge Unused Elements in SketchUp

Purging unused elements in SketchUp is a straightforward process:

  1. Selecting the Components: To begin purging, go to the “Window” menu and select “Model Info.” In the Model Info dialog box, click on “Statistics.” Here you will find a list of all components present in your model.
  2. Finding Unused Elements: Scroll down the statistics window and look for the “Unused” section.

    This section displays unused components, materials, and other elements present in your model.

  3. Purging Unused Elements: To remove these unused elements, simply click on the “Purge Unused” button. SketchUp will prompt you to confirm the deletion. Once confirmed, SketchUp will permanently delete the unused elements from your model.

Note: Before purging, it’s important to review the components and materials listed as unused. Sometimes, elements that appear unused may still be in use but not visible in the current view. Ensure you don’t delete any required components accidentally.


Purging is a crucial step in maintaining a clean and optimized SketchUp model. By removing unused components, materials, and styles, you can reduce file size, improve performance, and streamline your model organization. Remember to review the list of unused elements before purging to avoid deleting any necessary components.

Start purging today and enjoy a more efficient SketchUp workflow!