A router guide apparatus for use in forming rosette designs in a work piece includes a frame having a work surface with a wheel rotatably mounted upon the work surface. The wheel has a plurality of position stops. The frame includes an adjustable guide for holding and a tracking a router with a cutting blade. The frame includes stops for limiting movement of the router during use. The guide and stops are configured to enable the cutting blade to cut two petals of a rosette design in a single pass. The wheel is affixable into multiple angular positions relative to the guide so that multiple cuts can be made at different angular orientations relative to one another.