Workbenches

A bench having a horizontal working surface and a fence at the rear edge which defines a straight edge. The fence includes a forwardly extending ledge which overhangs the rear portion of the working surface. The fence and ledge are vertically movable relative to the working surface either by movement of the fence or preferably by movement of the working surface, so that a workpiece on the working surface can be releasably clamped between the ledge and the working surface. A bridge is secured to the fence and includes guide rails extending forwardly over the working surface accurately perpendicular to the fence, to guide a carriage on which can be mounted a power tool such as a router, e.g. to form an accurate edge on the workpiece.