Abstract: A rotatable table includes a shelf unit which is mounted on a support structure and a rotatable unit having a work surface which may be rotated from a horizontal position to a vertical position. The rotatable unit may be placed in (1) a horizontal position, (2) specific detent angular positions, (3) other angular positions selected by the user, and (4) a storage position wherein the work surface is vertical. A truss assembly guide which slidably receives a truss assembly makes the various angular positions possible. In an embodiment of the invention, the entire rotatable table is vertically positionable on the support structure.