Schematic of the stairs

front view

Top view

Step size

Bowstring

Reliance-speed

stage

Initial data
The height of the stairs 2500 mm
The length of the stairwells in the plan 3000 mm
Width of stairs 900 mm
Number of steps 12 + playground
The thickness of the treads 50 mm
Tread Overhang 50 mm

The length of the upper stringer 2676 mm
The length of the bottom stringer 1116 mm
The distance from the beginning of the bowstring to the first pylon top 54 mm
Step fastening supports 325 mm
The angle of the stairs 36.2°

Step size
Step height 192 mm
Depth steps 313 mm
The height of risers 142 mm

Area at all levels 3.375 m²
Material size pad 0.855 m²

The number of metal profile
Bowstring 7585 mm
Supports 3847 mm
playground 3400 mm
Additional fastening 720 mm
Total 15553 mm