Graepel-Garden with welded step tube
The Graepel-Garden spiral staircase step with welded step tube can be directly attached to the center support column. Made of steel (DD 11) and then hot-dip galvanized, the step is suitable for applications in the industrial sector. It is designed for a uniformly distributed load of 5 kN/m² and a concentrated load of 1.5 kN for 200 x 200 mm and complies with the DIN EN ISO 1461 standard. The delivery includes the step stud with screws.
The surface has a semi-spherical embossment facing upward (d = 4 mm) and punched holes facing downward, with a diameter of 8 mm, which are arranged in staggered rows. The open cross-section is approx. 9 %, providing this step with anti-slip and displacement properties as well as good drainage. The step can be walked on barefoot.
The material thickness is 2.5 mm. The perforation or embossment runs parallel to the stair’s nosing. The corners are welded. The spiral staircase step can be supplied with a left- or right-hand turn, for different stair radii, and different center support column diameters.
More information about Graepel-Garden embossment.