AutoCAD

How to Reduce Line Width in AutoCAD?

Understanding Line Width in AutoCAD

When working in AutoCAD, line width plays a crucial role in defining the clarity and professionalism of your drawings. Adjusting line width, particularly to make lines thinner, requires familiarity with various tools and settings within the software. This guide provides a comprehensive approach to reducing line width in AutoCAD 2025.

Steps to Reduce Line Width

1. Access the Plot Style Table

  1. Open your drawing in AutoCAD.
  2. Type PLOT in the command line and press Enter.
  3. In the Plot dialog box, click on the "Plot style table" dropdown menu.
  4. Select "Edit" next to the current plot style to open the Plot Style Table Editor.

2. Modify Line Weight Settings

  1. Select the Plot Style: Locate and select the plot style you wish to modify from the list.
  2. Adjust Lineweight: Click on the Lineweight dropdown arrow.
  3. Choose a Thinner Lineweight: From the available options, select a lighter lineweight. You can also opt for "Use Object Lineweight" if you want each object’s specific lineweight to be applied.
  4. Save Changes: Click "Save & Close" to apply your changes.

3. Using Object Properties

  1. Right-click on the line you want to modify and choose "Properties" from the context menu.
  2. In the Properties palette, navigate to the "Line" section.
  3. From the Color dropdown, you can select a desired color, but importantly, you’ll find another dropdown for line thickness.
  4. Choose a thinner line thickness from the list. Be sure to click "OK" or apply to save your settings.

4. Setting Global Width

For polylines or groups of lines:

  1. Select the polylines whose line width you want to adjust.
  2. Open the Properties palette (if it’s not visible, type PROPERTIES in the command line).
  3. Locate the "Global Width" setting and change it to a smaller value like zero to minimize the lines’ thickness.
  4. For multiple selections, you can use the QSELECT command to select all polylines before applying a uniform width change.

Displaying Line Thickness

To ensure your changes are visible on screen:

  1. Type LWDISPLAY in the command line and set the value to "On" or "1" to display line weight in the drawing.
  2. Alternatively, you can add the "Show/Hide Lineweight" button to your status bar for quick access.

Frequently Asked Questions

1. Why do lines appear thicker than expected in AutoCAD?
Lines may seem thicker due to plot lineweights or scale lineweights being enabled in your settings. Ensure that your plot style and lineweight settings are adjusted correctly.

2. Can I change line thickness for multiple objects at once?
Yes, you can select multiple objects and access the Properties palette. Use the QSELECT command to filter and change the line thickness of selected items efficiently.

3. What is the default line weight in AutoCAD?
The default line weight in AutoCAD is typically set at 0.01 inches. You can change this based on your design requirements through the Plot Style settings.

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.