General drawing a di staircase

Step sizes

steps

Stair string

Step support

Initial data
Stair height 2500 mm
Length a di staircase opening inna plan 3000 mm
Stair width 900 mm
Number a steps 13
Step thickness 50 mm
Overhang a steps 50 mm

Stair string length 3734 mm
Distance fram di beginning a di string to di first support above 56 mm
Support mounting step 300 mm
Amount a material fi supports a one bowstring 2240 mm
Stair angle 39.8°

Step sizes
Step height 192 mm
Step depth 281 mm
Riser height 142 mm
Area a �all steps 3.285 m²