Abstract: A guiding device for a rotatable, circular saw blade of a house-building saw. Such a saw comprises a bench-shaped stand (2) with a frame (98) which is movable therein and on which the saw blade (12) is rotatably mounted, and an operating mechanism (26) for raising and lowering the frame (98) in the stand (2). According to the invention the guiding device comprises guide elements (90, 92) whereby the frame (98) can also be moved along the bench surface (4) after the frame (98) has been moved to near an upper position.