Abstract: A system for removable installation and nondestructive removal and reinstallation of a stationary mast from which to suspend equipment on articulated arms for point-of-need positioning thereof includes parallel headers extending in a first horizontal direction, each with fasteners adjustably movable along its top for releasable connection to building structure over the headers, for selective emplacement of the headers relative to the building structure. Cross members extending under the headers are releasably fastened to the headers for emplacement, stationary but variable, along the headers. A mast depends from the cross members to support articulated arms and medical equipments.