When laying a maintenance area with gratings, they were stored on height-adjustable pedestals at heights of 135-200 mm. Here, the height-adjustable pedestal PLV50 / 75-0-FK was used, which has a smooth top without cross joints. The stilt was combined with the threaded piece ZSt65 / 100 and the rigid plate bearings PP155 / 15 from our plate plate brand (PlattenPlatte®).