The circumferential grating surface opens up the round containers of the steel structure and precisely accommodates recesses in the units.
The gratings used are SR1 press welded gratings with a mesh size of 34 x 38 mm and 30 x 3/4/5 mm galvanized bearing bars. The levels are connected via a staircase with grating steps; railings and handrails support safe access. The open grating structure allows water and dirt to drain downwards and keeps the paths functional during operation.