Or I miss something, Fabrizio?
This type of stair is available in the StairMaker, but as always it is hardly possible to have the stair of size you want.
Regards,
M.
AC 6.5, 13 - 19 Pl, OctaneRender for ArchiCAD, MoI 3D, Blender; W7 Pro 64;
i7-4790K/32 GB; GTX 980/4 GB