To hatch an area in AutoCAD, first ensure the boundary is fully enclosed, then use the Hatch command to apply a pattern. Begin by confirming the area is closed, such as a polyline or circle; gaps will prevent proper hatching. Next, access the Hatch tool via the Home tab or command line, and choose a pattern like ANSI or ISO while adjusting scale and angle. Use “Pick Points” to define the hatching area and preview before finalizing. Watch for boundary issues even if shapes appear closed—zoom in to check for misalignment or gaps. Fix these using PEDIT or BOUNDARY commands to create a closed region. After placing the hatch, edit it by double-clicking or using the Properties palette to adjust pattern, scale, or rotation. For resizing, modify the boundary geometry so associative hatching updates automatically, avoiding manual reapplication.
Hatching an area in AutoCAD is a common task when you're working on architectural or engineering drawings. Whether it's for showing different materials, adding visual clarity, or preparing for printing, knowing how to hatch properly can make your drawing more informative and professional.

Basic Steps to Hatch
Start by making sure the area you want to hatch is fully enclosed — like a rectangle, circle, or any closed polyline. If there are gaps, the hatch won’t fill correctly. Then go to the Home tab > Draw panel > Hatch (or type HATCH
in the command line). From there, choose a pattern from the drop-down menu — ANSI, ISO, or user-defined patterns are all available. You can also adjust scale and angle to fit your design needs.

Here’s what to watch out for:
- Make sure boundaries are closed
- Use the “Pick Points” option to click inside the area
- Preview before confirming with Enter or clicking OK
Once you get the hang of it, this part becomes pretty straightforward.

Adjusting Hatch Boundaries
Sometimes, even if your shape looks closed, AutoCAD might not recognize it as one. This often happens when lines don’t quite meet or there's a tiny gap. Zoom in closely and check for overlapping or misaligned geometry.
You can fix this by using the PEDIT command to join lines into a polyline or use the Boundary tool (BOUNDARY
) to create a closed region first. Once that’s done, try hatching again. It might take a few tries to get right, especially with complex shapes, but checking the boundary is always step one.
Editing Hatches After Placement
After placing a hatch, you might need to change its pattern, scale, or rotation. Just double-click the hatch object, or select it and open the Properties palette. There you can tweak settings without starting over.
If you want to resize or reshape the hatch area, it’s best to edit the boundary geometry instead of directly modifying the hatch. That way, the hatch updates automatically if you've used associative hatching (which is usually enabled by default). If not, you may have to reapply the hatch manually after editing the boundary.
That's about it. Hatch tools in AutoCAD are powerful once you understand how they respond to boundaries and settings. It's not hard, but small things like gaps or wrong scales can throw off the whole thing.
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