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| Name | Thickness () | Element | Minimum bounding box | |||
|---|---|---|---|---|---|---|
| Area (²) | Volume (³) | Dimensions () | Area (²) | Volume (³) | ||
/images/icons/3d.svg 3D
/images/icons/2d.svg 2D
/images/icons/costing.svg Cutting list
Parameters
Height
Vertical distance between the lower floor and the upper floor.
Length
Horizontal distance between the nose of the first step and the step nosing of the upper floor.
Width
Useful width of the staircase.
The stair width must be greater than 700mm (28") and its ideal value is greater than or equal to 800mm (32").
Step number
Easystair automatically calculates the best value. Just click on the lock to change it.
Number of steps that compose the staircase.
Landing step
Please indicate 0 if you do not want a landing step.
Step in the extension of the upper floor.
It allows an overlap on the last step.
It also facilitates the connection of the string and the handrail with the upper floor.
Overlap
Part of the step covered by the top step.
The overlap improves the comfort of the staircase.
Steps thickness
Stairwell
Opening in the upper floor allowing the passage of the staircase.
Upper floor thickness
Thickness of the upper floor landing at the stairwell.
Length of the stairwell
Blondel's law
Easystair automatically calculates the best value. Just click on the lock to change it.
G + 2H = 590 to 650mm (23.2 to 25.6")
Formula invented by the French architect François Blondel (1618-1686) checking the coherence between the step height and the going.
The ideal value is 630mm (24.8").
Step height
Vertical distance between two step nosings.
The step height should be between 150 and 200mm (6 and 8").
Its ideal value is 175mm (7").
Going
Horizontal distance between two step nosings.
The going should be between 230 and 330mm (9 and 13").
Its ideal value is 280mm (11").
Angle
Determine the slope of the staircase.
The angle should be between 20 and 50°. Its ideal value is 30°.
Blondel's law
G + 2H = 590 to 650mm (23.2 to 25.6")
Formula invented by the French architect François Blondel (1618-1686) checking the coherence between the step height and the going.
The ideal value is 630mm (24.8").
Headroom
Distance between the ceiling and the walkline at the stairwell.
The headroom should be greater than 1900mm (75") and the ideal value is greater than or equal to 2100mm (83").
