Calculation a stairs pan bowstrings

Calculation a di dimensions a one wooden staircase wid bowstrings

Please indicate di dimensions weh yuh need inna millimeters

X - staircase opening length
Y - Stair height
Z - Stair width
C - Number a steps
W - Step thickness
F - Overhang a steps
T - thickness a bowstring or stringer
H - Show risers
LR - direction a di stairs
SP - position a di fos step relative to di floor level a di secan floor


Program capabilities.

Calculation a one convenient design a one wooden staircase pan bowstrings.
Determining di amount a materials weh yuh need.
Exact dimensions a all parts.
Detailed drawings an diagrams a all staircase elements.
Recommendations fi di convenience a stairs.

Calculation a stair comfort is calculated using a formula based pan step length.
A person's stride length range fram 60 to 66 cm, wid an average a 63 cm.
A comfortable staircase correspond to di formula: 2 step heights + step depth = 63±3 cm.

Di most convenient inclination a di stairs is fram 30° to 40°.
Di depth a di steps a di stairs haffi correspond to shoe size 45 - no less dan 28-30 cm.
Di lack a depth can be compensated by di protrusion a di step.
Di height a di step shuda be up to 20-25 cm.