Spiral stair calculator

Give tick mark on check box if that value must be considered




























































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R
R

Finished floor level
Up stair
Finished floor level
Down stair
UP
UP
Angle(degree)
Top step
Angle(degree)
Step to Step
Angle(degree)
Bottom Step
Top step
Top step
Bottom step
0°
90°
180°
270°
0°
90°
180°
270°

All dimensions are in




    Spiral stair is an option to use stair which is not available required running space to provide normal straight stair. Ladders also using for these similar cases and its cheaper also, but spiral stairs are safer than Ladders.

    The spiral stair calculations are little difficult, Above form will help you to calculate it.









































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