AutoCAD

How to Remove the Block in AutoCAD?

Understanding Block Removal in AutoCAD

Removing blocks in AutoCAD is an essential skill for managing your drawings efficiently. Blocks are used to group objects, which can help streamline the design process. However, as projects progress, blocks can become unnecessary or redundant. Below is a comprehensive guide detailing the steps for removing blocks in AutoCAD.

How to Delete a Block in AutoCAD 2025

  1. Accessing the Command Prompt: Begin by typing PURGE into the Command prompt. This command will open a dialog box that lists all items available for purging.

  2. Selection Criteria: When prompted, respond by entering ‘S’ for the option of including or excluding nested items and orphaned data. This will help refine what gets purged from the drawing.

  3. Choose Object Types: You will now see a list of object types. Select the specific types of objects you wish to purge. If you’re not sure, you can just choose ‘Block’.

  4. Specify Names: Enter the names of the blocks you want to remove, or use the asterisk (*) to select all blocks within the chosen category.

  5. Confirm Purge: After making your selections, confirm the action to permanently delete the specified blocks.

Erasing Unused Blocks Directly

To erase unwanted blocks from your drawing, you can also utilize a direct method:

  1. Home Tab Navigation: Click on the Home tab in the ribbon, then find the Modify panel.

  2. Selecting the Erase Command: Click on the Erase command. Alternatively, you can also type ERASE into the Command prompt.

  3. Object Selection: At the Select Objects prompt, utilize any of the selection methods (crosshairs, window, etc.) to choose the blocks you want to erase. If you wish to remove the most recently created object, press L for the last object, or P for the previous selection set.

  4. Execution: Once you have made your selections, press Enter to finalize the deletion.

Comprehensive Purging of All Blocks

For a thorough clearance of unreferenced blocks:

  1. Initiate Purge Command: Start the process by typing PURGE in the command line.

  2. Options for Nested Blocks: If you also want to remove nested blocks, check the box for “Purge Nested Items.”

  3. Expand Block Tree View: For specific blocks, double-click on the “Blocks” category in the dialog to expand the tree view. This will allow for specific selections.

  4. Final Steps: Choose the blocks to purge and confirm your selections. This method ensures that no unnecessary blocks remain in your drawing.

Removing Block Definitions

To remove a block definition from the drawing:

  1. Open the Purge Dialog: Click on the Application button, navigate to Drawing Utilities, and select Purge.

  2. Purgeable Items: Ensure the option for Purgeable Items is checked.

  3. Selecting Blocks: Highlight the blocks you wish to remove from the list. You’ll be prompted to confirm each item.

  4. Confirm to Purge Checked Items: After reviewing, click on Purge Checked Items to execute the removal.

  5. Finalizing the Action: Select additional items as necessary or click Close to exit the dialog.

Frequently Asked Questions

1. Can I recover blocks after deletion?
No, once blocks are purged or erased, they cannot be recovered. Always back up your drawing before making significant changes.

2. Is there a way to undo a purge?
The undo feature in AutoCAD only applies to the last action. If you have purged blocks, you will not be able to undo this action if it’s no longer in your command history.

3. What if I wish to edit a block instead of deleting it?
To edit a block, right-click on the block and select Edit Block In-Place, or use the command REFEDIT. Make your changes and then use REFCLOSE to apply and exit the editor.

About the author

Wei Zhang

Wei Zhang

Wei Zhang is a renowned figure in the CAD (Computer-Aided Design) industry in Canada, with over 30 years of experience spanning his native China and Canada. As the founder of a CAD training center, Wei has been instrumental in shaping the skills of hundreds of technicians and engineers in technical drawing and CAD software applications. He is a certified developer with Autodesk, demonstrating his deep expertise and commitment to staying at the forefront of CAD technology. Wei’s passion for education and technology has not only made him a respected educator but also a key player in advancing CAD methodologies in various engineering sectors. His contributions have significantly impacted the way CAD is taught and applied in the professional world, bridging the gap between traditional drafting techniques and modern digital solutions.