Graepel-Steg is a C-shaped, canted metal profile grating. Its surface is characterized by an embossed round perforation (d = 12 mm) and debossed elongated holes for reinforcing the transverse stiffness. The perforation extends only a maximum of 4 mm upwards. The 16-mm-high profiles in lateral grating direction permit high lump loads. The open area is approx. 28 %. Despite its wide displacement space and a high drainage effect, a ball of ≥ 16 mm will not drop through the gratings. Graepel-Steg has a high slip resistance. The maximum embossed field is 270 mm.
Due to the high transverse stiffness of the grating surface, the Graepel-Steg perforation permits high lump loads on larger grating widths. So e.g. gutters on driving surfaces can be covered. The gratings are also suitable for areas that are traveled by dollies.
Moreover, Graepel-Steg has already been used as design element for cladding facades. It is also conceivable to use this perforation as enclosures and covers.