Abstract: A router jig apparatus for forming dowel which can be used for stair railings, in particular. The router jig apparatus includes a support table having a tabletop and leg members for supporting the tabletop; and also includes a router assembly including a motor being attached to an underside of the tabletop and also including a router bit being actuated by the motor; and further includes a template assembly including a plate being movably disposed upon a top of the tabletop, and also including a work piece support member being disposed upon the plate for supporting a work piece to be routed by the router bit.