How To Draw An Arch In AutoCad

On site plans, creating an arc is very necessary especially when you need to show curves in roads and sidewalks. Here is how you create an arc in AutoCAD for a site plan:

First, you will need the chord length, angle and radius. Under drawing units in AutoCAD (click FORMAT, mouse down to DRAWING UNITS, click DRAWING UNITS) set the length type to decimal, leave the length precision at its default, the angle type to Deg/Min/Sec, the angle precision to 0d00'00".

From the toolbar, click on DRAW, mouse down to ARC, under ARC mouse down and click START, END, RADIUS. In the drawing, click on the start point of the arc (remember to have your endpoint snaps on), then shift and right click and chose FROM. Slowly move the mouse away from the start point, pause and then move back to the same start point and click on it. On the command line enter @chordlength