Abstract: A portable workbench featuring a stand structure supported by a plurality of wheels, and having a work surface with perforations therein for permitting liquid to drain therethrough, a self-draining catch basin disposed under the work surface to collect the draining liquid, and a removable reservoir connected to the catch basin to store the liquid for subsequent disposal. In one embodiment, the perforated work surface and catch basin form a detachable section for use in conjunction with existing stationary workbenches. The perforated work surface is coupled to the frame structure by a hinge which permits the work surface to swing away from the catch basin for easy access thereto. The position of this hinge and the supporting structure is such that the weight of the work surface and any objects that may be placed thereon is entirely supported by the stand structure and not by the hinge.