Abstract: A curb forming machine with parts which may be mounted in different positions on a frame so that curb may be laid on the left or right side of the frame outside the frame, and on the left or right side inside the frame. A feed hopper delivers curb forming material either directly to an auger housing, for curb formed inside the frame sidewalls, or first to a side chute and then to the auger housing, for curb formed outside the frame sidewalls. A curb forming mold is attached to the auger housing. Adjustable height wheels allow the machine to move along a surface for forming curb.