Abstract: A work support which has a channel with a web and side walls is disclosed. The channel is sized for sliding engagement with a fence and on a table of an associated saw. The work support has two substantially planar positioning surfaces which are carried by the channel at substantially 90.degree. to one another. One of the two positioning surfaces is substantially parallel to the guiding surface of the fence of the associated saw when the channel is slidably engaged therewith. The support also includes two threaded members, one for urging the work piece against each of the positioning surfaces.