Schematic of the stairs

stage

Step size

Dimensions of a bowstring

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 13
The thickness of the treads 50 mm
Tread Overhang 50 mm
The thickness of a bowstring 60 mm

The amount of material for a bowstring 5390 mm
The angle of the stairs 39.8°

Step size
Step height 192 mm
Depth steps 281 mm
The height of risers 142 mm
Area at all levels 3.285 m²