What Does the Trim Command Do in AutoCAD?

In AutoCAD, the Trim command is a powerful tool that allows you to remove unwanted lines, arcs, and other objects in your drawing. This command plays a vital role in streamlining your design process and ensuring that your drawings are clean and precise.

How Does the Trim Command Work?

The Trim command works by selecting objects that you want to keep and removing any intersecting parts of other objects. It essentially trims away the excess portions of the selected objects, leaving only the desired geometry behind.

To use the Trim command:

  1. Select the Trim icon from the AutoCAD ribbon toolbar or type “TRIM” into the command line.
  2. You will be prompted to select cutting edges. These are the objects that define where you want to trim.
  3. Select the objects you want to trim by clicking on them. You can select multiple objects by holding down the Shift key while clicking.
  4. Press Enter or right-click to complete the selection of cutting edges.
  5. The selected objects will be trimmed based on their intersection with the cutting edges.

Note that when using the Trim command, it is important to pay attention to which object is considered as a cutting edge and which ones are being trimmed. The order in which you select objects can affect how they are trimmed.

Tips for Using the Trim Command Effectively

Here are some tips to help you make the most out of the Trim command:

  • Selecting Multiple Cutting Edges: To trim using multiple cutting edges at once, simply select all desired cutting edges before selecting any objects to trim. This can save you time and effort.
  • Trimming Multiple Objects: If you have multiple objects that need to be trimmed by the same cutting edge, select all the objects first and then select the cutting edge.

    This way, you don’t have to repeat the selection process for each object.

  • Using Fence or Crossing Selection: Instead of individually selecting objects for trimming, you can use the Fence or Crossing selection methods. The Fence option allows you to draw a freehand line around the objects you want to trim, while the Crossing option selects all objects that intersect with a window or crossing line.


The Trim command in AutoCAD is a versatile tool that simplifies the process of removing unwanted geometry from your drawings. By using this command effectively, you can improve the clarity and accuracy of your designs. Remember to experiment with different selection methods and keep in mind the order in which you select objects to achieve precise trimming results.

Now that you understand how the Trim command works, start incorporating it into your workflow and experience its time-saving benefits!