A support stand for movable support of a power tool features the use of rollers to support a tool mount along an elongated track. The track features a cover arrangement disposed over the surfaces on which the rollers move so as to avoid sawdust or other debris from building up on the track and interfering with smooth rolling motion of the tool mount. The stand is assembled in a working position by attaching two stand sections end to end to form the track, and is also configured for arrangement into a collapsed condition in which the stand sections stack one atop the other for space efficient storage and convenient transport.