StructX > Additional Resources > AutoCAD > Structural Sections > EA Blocks
Steel angles are typically used for frames, sub-frames, composite and truss structures as well as brackets. Steel angles are ideal for structures that are both light weight and long lasting and can provide reinforcing at edges of a surface to prevent buckling and thus allowing structures to support greater loads. Steel angles are also ideal for corner pieces where the flat legs make ideal connection points.
Additional information regarding the properties of UA sections can be found Here.
StructX has proved the following free AutoCAD blocks that can be used to aid with structural drafting. Simply click on the most relevant image to download the latest drawing file. It should be noted that some browsers will require you to "right click > save link as" to save a copy.