Stringers at both sides tab

Used to determine the dimensions of the steps if you have selected the "strings both sides" stair design.

Setting Description
Step width Input the depth of the step here.
Angular extension The outer edge of the step is bigger than the inner edge by this value, creating an angular stair.
b,c,d Spacing dimensions for the mounting holes for the steps.

b is the distance between the holes of the upper edge of the step, c is the height of the step mountings, d is the hole spacing of both mounting holes.

Hole spacing The center distance of the mounting holes of the steps.
Hole diameter The hole diameter of the step mounting holes.
Oblong hole axis The distance of the axis of the back oblong holes of the stairs.
Indent The offset of the stair steps from the front edge of the step backwards. Negative values push the step forwards.
Bent outer edge The outer edge of the step is designed as a bent edge and adapted to the radius of the spiral. Otherwise this is designed as a straight edge (string of the arch).