The surface of Graepel-City consists of small embossed (diameter of 4 mm) and debossed holes (diameter of 8 mm) that are arranged in staggered rows. Graepel-City is based on the Graepel-Indoor perforation and supplements it by drain holes. It provides good slip resistance and drainage effects. The open area is approx. 6 %; the maximum embossed field is 460 mm.
Graepel-City is designed for use in public buildings and outside facilities. This perforation provides a very safe and comfortable walking surface for pedestrians and cyclists. Water and sediments of small grain size can fall through the drain holes, but it is sufficiently opaque even on steps. If barefoot walking is required, the Graepel-Garden perforation is recommended.
Graepel-City is also used in the industrial sector, e.g. in inspection pits for cars and commercial vehicles.