Free hatching pattern files are  fully compatible with AutoCAD 2018 and AutoCAD LT 2018.  Click here to access our Free Hatch Pattern Collection 

 Browse the collection and download the free CAD hatch patterns and AutoCAD 2018 custom line types you need. Over 300 free AutoCAD 2018 architectural hatch patterns  to choose from. The free AutoCAD PAT files are AutoCAD 2018 compatible

The CAD library includes free Autodesk 2018 CAD wood pattern files , free stone hatches,  brick hatch patterns, geometric patterns and many scales & swatches of each design.