A skid shoe for a snowthrower is provided that includes a selected dual-faced, dual-angled approach surface, and an elongate footprint as compared to prior skid shoe devices. The skid shoe includes a runner element and a mounting flange element, each of which has dimensions and contours configured to maximize utility when mounted to a snowthrower. In particular, the skid shoe provides for smoothened operation of a snowthrower moving across uneven surfaces and/or abrupt transitions.